outlookmsgfile.py

# This module converts a Microsoft Outlook .msg file into
# a MIME message that can be loaded by most email programs
# or inspected in a text editor.
#
# This script relies on the Python package compoundfiles
# for reading the .msg container format.
#
# Referencecs:
#
# https://msdn.microsoft.com/en-us/library/cc463912.aspx
# https://msdn.microsoft.com/en-us/library/cc463900(v=exchg.80).aspx
# https://msdn.microsoft.com/en-us/library/ee157583(v=exchg.80).aspx
# https://blogs.msdn.microsoft.com/openspecification/2009/11/06/msg-file-format-part-1/

import email.message
import email.parser
import email.policy
import re
import sys
import urllib.parse
from email.utils import formataddr, formatdate
from functools import reduce

import compoundfiles

# MAIN FUNCTIONS


def load(filename_or_stream):
    with compoundfiles.CompoundFileReader(filename_or_stream) as doc:
        doc.rtf_attachments = 0
        return load_message_stream(doc.root, True, doc)


def load_message_stream(entry, is_top_level, doc):
    # Load stream data.
    props = parse_properties(
        entry['__properties_version1.0'], is_top_level, entry, doc)

    # Construct the MIME message....
    msg = email.message.EmailMessage()

    # Add the raw headers, if known.
    if 'TRANSPORT_MESSAGE_HEADERS' in props:
        # Get the string holding all of the headers.
        headers = props['TRANSPORT_MESSAGE_HEADERS']
        if isinstance(headers, bytes):
            headers = headers.decode("utf-8")

        # Remove content-type header because the body we can get this
        # way is just the plain-text portion of the email and whatever
        # Content-Type header was in the original is not valid for
        # reconstructing it this way.
        headers = re.sub("Content-Type: .*(\n\s.*)*\n", "", headers, re.I)

        # Parse them.
        headers = email.parser.HeaderParser(policy=email.policy.default)\
            .parsestr(headers)

        # Copy them into the message object.
        for header, value in headers.items():
            msg[header] = value

    else:
        # Construct common headers from metadata.

        msg['Date'] = formatdate(props['MESSAGE_DELIVERY_TIME'].timestamp())
        del props['MESSAGE_DELIVERY_TIME']

        if props['SENDER_NAME'] != props['SENT_REPRESENTING_NAME']:
            props['SENDER_NAME'] += " (" + \
                props['SENT_REPRESENTING_NAME'] + ")"
        del props['SENT_REPRESENTING_NAME']
        msg['From'] = formataddr((props['SENDER_NAME'], ""))
        del props['SENDER_NAME']

        msg['To'] = props['DISPLAY_TO']
        del props['DISPLAY_TO']

        msg['CC'] = props['DISPLAY_CC']
        del props['DISPLAY_CC']

        msg['BCC'] = props['DISPLAY_BCC']
        del props['DISPLAY_BCC']

        msg['Subject'] = props['SUBJECT']
        del props['SUBJECT']

    # Add the plain-text body from the BODY field.
    if 'BODY' in props:
        body = props['BODY']
        if isinstance(body, str):
            msg.set_content(body, cte='quoted-printable')
        else:
            msg.set_content(body, maintype="text", subtype="plain", cte='8bit')

    # Plain-text is not availabe. Use the rich text version.
    else:
        doc.rtf_attachments += 1
        fn = "messagebody_{}.rtf".format(doc.rtf_attachments)

        msg.set_content(
            "<no plain text message body --- see attachment {}>".format(fn),
            cte='quoted-printable')

        # Decompress the value to Rich Text Format.
        import compressed_rtf
        rtf = props['RTF_COMPRESSED']
        rtf = compressed_rtf.decompress(rtf)

        # Add RTF file as an attachment.
        msg.add_attachment(
            rtf,
            maintype="text", subtype="rtf",
            filename=fn)

    # # Copy over string values of remaining properties as headers
    # # so we don't lose any information.
    # for k, v in props.items():
    #   if k == 'RTF_COMPRESSED': continue # not interested, save output
    #   msg[k] = str(v)

    # Add attachments.
    for stream in entry:
        if stream.name.startswith("__attach_version1.0_#"):
            process_attachment(msg, stream, doc)

    return msg


def process_attachment(msg, entry, doc):
    # Load attachment stream.
    props = parse_properties(
        entry['__properties_version1.0'], False, entry, doc)

    # The attachment content...
    blob = props['ATTACH_DATA_BIN']

    # Get the filename and MIME type of the attachment.
    filename = props.get("ATTACH_LONG_FILENAME") or props.get(
        "ATTACH_FILENAME") or props.get("DISPLAY_NAME")
    if isinstance(filename, bytes):
        filename = filename.decode("utf8")

    mime_type = props.get('ATTACH_MIME_TAG', 'application/octet-stream')
    if isinstance(mime_type, bytes):
        mime_type = mime_type.decode("utf8")

    filename = urllib.parse.quote_plus(filename)

    # Python 3.6.
    if isinstance(blob, str):
        msg.add_attachment(
            blob,
            filename=filename)
    elif isinstance(blob, bytes):
        msg.add_attachment(
            blob,
            maintype=mime_type.split(
                "/", 1)[0], subtype=mime_type.split("/", 1)[-1],
            filename=filename)
    else:  # a Message instance
        msg.add_attachment(
            blob,
            filename=filename)


def parse_properties(properties, is_top_level, container, doc):
    # Read a properties stream and return a Python dictionary
    # of the fields and values, using human-readable field names
    # in the mapping at the top of this module.

    # Load stream content.
    with doc.open(properties) as stream:
        stream = stream.read()

    # Skip header.
    i = (32 if is_top_level else 24)

    # Read 16-byte entries.
    ret = {}
    while i < len(stream):
        # Read the entry.
        property_type = stream[i+0:i+2]
        property_tag = stream[i+2:i+4]
        flags = stream[i+4:i+8]
        value = stream[i+8:i+16]
        i += 16

        # Turn the byte strings into numbers and look up the property type.
        property_type = property_type[0] + (property_type[1] << 8)
        property_tag = property_tag[0] + (property_tag[1] << 8)
        if property_tag not in property_tags:
            continue  # should not happen
        tag_name, _ = property_tags[property_tag]
        tag_type = property_types.get(property_type)

        # Fixed Length Properties.
        if isinstance(tag_type, FixedLengthValueLoader):
            value = tag_type.load(value)

        # Variable Length Properties.
        elif isinstance(tag_type, VariableLengthValueLoader):
            value_length = stream[i+8:i+12]  # not used

            # Look up the stream in the document that holds the value.
            streamname = "__substg1.0_{0:0{1}X}{2:0{3}X}".format(
                property_tag, 4, property_type, 4)
            try:
                with doc.open(container[streamname]) as innerstream:
                    value = innerstream.read()
            except:
                # Stream isn't present!
                print("stream missing", streamname, file=sys.stderr)
                continue

            value = tag_type.load(value)

        elif isinstance(tag_type, EMBEDDED_MESSAGE):
            # Look up the stream in the document that holds the attachment.
            streamname = "__substg1.0_{0:0{1}X}{2:0{3}X}".format(
                property_tag, 4, property_type, 4)
            try:
                value = container[streamname]
            except:
                # Stream isn't present!
                print("stream missing", streamname, file=sys.stderr)
                continue
            value = tag_type.load(value, doc)

        else:
            # unrecognized type
            print("unhandled property type", hex(
                property_type), file=sys.stderr)
            continue

        ret[tag_name] = value

    return ret


# PROPERTY VALUE LOADERS

class FixedLengthValueLoader(object):
    pass


class NULL(FixedLengthValueLoader):
    @staticmethod
    def load(value):
        # value is an eight-byte long bytestring with unused content.
        return None


class BOOLEAN(FixedLengthValueLoader):
    @staticmethod
    def load(value):
        # value is an eight-byte long bytestring holding a two-byte integer.
        return value[0] == 1


class INTEGER16(FixedLengthValueLoader):
    @staticmethod
    def load(value):
        # value is an eight-byte long bytestring holding a two-byte integer.
        return reduce(lambda a, b: (a << 8)+b, reversed(value[0:2]))


class INTEGER32(FixedLengthValueLoader):
    @staticmethod
    def load(value):
        # value is an eight-byte long bytestring holding a four-byte integer.
        return reduce(lambda a, b: (a << 8)+b, reversed(value[0:4]))


class INTEGER64(FixedLengthValueLoader):
    @staticmethod
    def load(value):
        # value is an eight-byte long bytestring holding an eight-byte integer.
        return reduce(lambda a, b: (a << 8)+b, reversed(value))


class INTTIME(FixedLengthValueLoader):
    @staticmethod
    def load(value):
        # value is an eight-byte long bytestring encoding the integer number of
        # 100-nanosecond intervals since January 1, 1601.
        from datetime import datetime, timedelta
        # bytestring to integer
        value = reduce(lambda a, b: (a << 8)+b, reversed(value))
        value = datetime(1601, 1, 1) + timedelta(seconds=value/10000000)
        return value

# TODO: The other fixed-length data types:
# "FLOAT", "DOUBLE", "CURRENCY", "APPTIME", "ERROR"


class VariableLengthValueLoader(object):
    pass


class BINARY(VariableLengthValueLoader):
    @staticmethod
    def load(value):
        # value is a bytestring. Just return it.
        return value


class STRING8(VariableLengthValueLoader):
    @staticmethod
    def load(value):
        # value is a bytestring. I haven't seen specified what character encoding
        # is used when the Unicode storage type is not used, so we'll assume it's
        # ASCII or Latin-1 like but we'll use UTF-8 to cover the bases.
        return value.decode("utf8")


class UNICODE(VariableLengthValueLoader):
    @staticmethod
    def load(value):
        # value is a bytestring. I haven't seen specified what character encoding
        # is used when the Unicode storage type is not used, so we'll assume it's
        # ASCII or Latin-1 like but we'll use UTF-8 to cover the bases.
        return value.decode("utf16")

# TODO: The other variable-length tag types are "CLSID", "OBJECT".


class EMBEDDED_MESSAGE(object):
    @staticmethod
    def load(entry, doc):
        return load_message_stream(entry, False, doc)


# CONSTANTS

# These constants are defined by the Microsoft Outlook file format
# and identify the data types and data fields in the .msg file.

# from mapidefs.h via https://github.com/inverse-inc/openchange.old/blob/master/libmapi/mapidefs.h
property_types = {
    0x1: NULL(),
    0x2: INTEGER16(),
    0x3: INTEGER32(),
    0x4: "FLOAT",
    0x5: "DOUBLE",
    0x6: "CURRENCY",
    0x7: "APPTIME",
    0xa: "ERROR",
    0xb: BOOLEAN(),
    0xd: EMBEDDED_MESSAGE(),
    0x14: INTEGER64(),
    0x1e: STRING8(),
    0x1f: UNICODE(),
    0x40: INTTIME(),
    0x48: "CLSID",
    0xFB: "SVREID",
    0xFD: "SRESTRICT",
    0xFE: "ACTIONS",
    0x102: BINARY(),
}

# from mapitags.h via https://github.com/mvz/email-outlook-message-perl/blob/master/mapitags.h
property_tags = {
    0x01: ('ACKNOWLEDGEMENT_MODE', 'I4'),
    0x02: ('ALTERNATE_RECIPIENT_ALLOWED', 'BOOLEAN'),
    0x03: ('AUTHORIZING_USERS', 'BINARY'),
    # Comment on an automatically forwarded message
    0x04: ('AUTO_FORWARD_COMMENT', 'STRING'),
    # Whether a message has been automatically forwarded
    0x05: ('AUTO_FORWARDED', 'BOOLEAN'),
    0x06: ('CONTENT_CONFIDENTIALITY_ALGORITHM_ID', 'BINARY'),
    0x07: ('CONTENT_CORRELATOR', 'BINARY'),
    0x08: ('CONTENT_IDENTIFIER', 'STRING'),
    # MIME content length
    0x09: ('CONTENT_LENGTH', 'I4'),
    0x0A: ('CONTENT_RETURN_REQUESTED', 'BOOLEAN'),
    0x0B: ('CONVERSATION_KEY', 'BINARY'),
    0x0C: ('CONVERSION_EITS', 'BINARY'),
    0x0D: ('CONVERSION_WITH_LOSS_PROHIBITED', 'BOOLEAN'),
    0x0E: ('CONVERTED_EITS', 'BINARY'),
    # Time to deliver for delayed delivery messages
    0x0F: ('DEFERRED_DELIVERY_TIME', 'SYSTIME'),
    0x10: ('DELIVER_TIME', 'SYSTIME'),
    # Reason a message was discarded
    0x11: ('DISCARD_REASON', 'I4'),
    0x12: ('DISCLOSURE_OF_RECIPIENTS', 'BOOLEAN'),
    0x13: ('DL_EXPANSION_HISTORY', 'BINARY'),
    0x14: ('DL_EXPANSION_PROHIBITED', 'BOOLEAN'),
    0x15: ('EXPIRY_TIME', 'SYSTIME'),
    0x16: ('IMPLICIT_CONVERSION_PROHIBITED', 'BOOLEAN'),
    # Message importance
    0x17: ('IMPORTANCE', 'I4'),
    0x18: ('IPM_ID', 'BINARY'),
    0x19: ('LATEST_DELIVERY_TIME', 'SYSTIME'),
    0x1A: ('MESSAGE_CLASS', 'STRING'),
    0x1B: ('MESSAGE_DELIVERY_ID', 'BINARY'),
    0x1E: ('MESSAGE_SECURITY_LABEL', 'BINARY'),
    0x1F: ('OBSOLETED_IPMS', 'BINARY'),
    # Person a message was originally for
    0x20: ('ORIGINALLY_INTENDED_RECIPIENT_NAME', 'BINARY'),
    0x21: ('ORIGINAL_EITS', 'BINARY'),
    0x22: ('ORIGINATOR_CERTIFICATE', 'BINARY'),
    0x23: ('ORIGINATOR_DELIVERY_REPORT_REQUESTED', 'BOOLEAN'),
    # Address of the message sender
    0x24: ('ORIGINATOR_RETURN_ADDRESS', 'BINARY'),
    0x25: ('PARENT_KEY', 'BINARY'),
    0x26: ('PRIORITY', 'I4'),
    0x27: ('ORIGIN_CHECK', 'BINARY'),
    0x28: ('PROOF_OF_SUBMISSION_REQUESTED', 'BOOLEAN'),
    # Whether a read receipt is desired
    0x29: ('READ_RECEIPT_REQUESTED', 'BOOLEAN'),
    # Time a message was received
    0x2A: ('RECEIPT_TIME', 'SYSTIME'),
    0x2B: ('RECIPIENT_REASSIGNMENT_PROHIBITED', 'BOOLEAN'),
    0x2C: ('REDIRECTION_HISTORY', 'BINARY'),
    0x2D: ('RELATED_IPMS', 'BINARY'),
    # Sensitivity of the original message
    0x2E: ('ORIGINAL_SENSITIVITY', 'I4'),
    0x2F: ('LANGUAGES', 'STRING'),
    0x30: ('REPLY_TIME', 'SYSTIME'),
    0x31: ('REPORT_TAG', 'BINARY'),
    0x32: ('REPORT_TIME', 'SYSTIME'),
    0x33: ('RETURNED_IPM', 'BOOLEAN'),
    0x34: ('SECURITY', 'I4'),
    0x35: ('INCOMPLETE_COPY', 'BOOLEAN'),
    0x36: ('SENSITIVITY', 'I4'),
    # The message subject
    0x37: ('SUBJECT', 'STRING'),
    0x38: ('SUBJECT_IPM', 'BINARY'),
    0x39: ('CLIENT_SUBMIT_TIME', 'SYSTIME'),
    0x3A: ('REPORT_NAME', 'STRING'),
    0x3B: ('SENT_REPRESENTING_SEARCH_KEY', 'BINARY'),
    0x3C: ('X400_CONTENT_TYPE', 'BINARY'),
    0x3D: ('SUBJECT_PREFIX', 'STRING'),
    0x3E: ('NON_RECEIPT_REASON', 'I4'),
    0x3F: ('RECEIVED_BY_ENTRYID', 'BINARY'),
    # Received by: entry
    0x40: ('RECEIVED_BY_NAME', 'STRING'),
    0x41: ('SENT_REPRESENTING_ENTRYID', 'BINARY'),
    0x42: ('SENT_REPRESENTING_NAME', 'STRING'),
    0x43: ('RCVD_REPRESENTING_ENTRYID', 'BINARY'),
    0x44: ('RCVD_REPRESENTING_NAME', 'STRING'),
    0x45: ('REPORT_ENTRYID', 'BINARY'),
    0x46: ('READ_RECEIPT_ENTRYID', 'BINARY'),
    0x47: ('MESSAGE_SUBMISSION_ID', 'BINARY'),
    0x48: ('PROVIDER_SUBMIT_TIME', 'SYSTIME'),
    # Subject of the original message
    0x49: ('ORIGINAL_SUBJECT', 'STRING'),
    0x4A: ('DISC_VAL', 'BOOLEAN'),
    0x4B: ('ORIG_MESSAGE_CLASS', 'STRING'),
    0x4C: ('ORIGINAL_AUTHOR_ENTRYID', 'BINARY'),
    # Author of the original message
    0x4D: ('ORIGINAL_AUTHOR_NAME', 'STRING'),
    # Time the original message was submitted
    0x4E: ('ORIGINAL_SUBMIT_TIME', 'SYSTIME'),
    0x4F: ('REPLY_RECIPIENT_ENTRIES', 'BINARY'),
    0x50: ('REPLY_RECIPIENT_NAMES', 'STRING'),
    0x51: ('RECEIVED_BY_SEARCH_KEY', 'BINARY'),
    0x52: ('RCVD_REPRESENTING_SEARCH_KEY', 'BINARY'),
    0x53: ('READ_RECEIPT_SEARCH_KEY', 'BINARY'),
    0x54: ('REPORT_SEARCH_KEY', 'BINARY'),
    0x55: ('ORIGINAL_DELIVERY_TIME', 'SYSTIME'),
    0x56: ('ORIGINAL_AUTHOR_SEARCH_KEY', 'BINARY'),
    0x57: ('MESSAGE_TO_ME', 'BOOLEAN'),
    0x58: ('MESSAGE_CC_ME', 'BOOLEAN'),
    0x59: ('MESSAGE_RECIP_ME', 'BOOLEAN'),
    # Sender of the original message
    0x5A: ('ORIGINAL_SENDER_NAME', 'STRING'),
    0x5B: ('ORIGINAL_SENDER_ENTRYID', 'BINARY'),
    0x5C: ('ORIGINAL_SENDER_SEARCH_KEY', 'BINARY'),
    0x5D: ('ORIGINAL_SENT_REPRESENTING_NAME', 'STRING'),
    0x5E: ('ORIGINAL_SENT_REPRESENTING_ENTRYID', 'BINARY'),
    0x5F: ('ORIGINAL_SENT_REPRESENTING_SEARCH_KEY', 'BINARY'),
    0x60: ('START_DATE', 'SYSTIME'),
    0x61: ('END_DATE', 'SYSTIME'),
    0x62: ('OWNER_APPT_ID', 'I4'),
    # Whether a response to the message is desired
    0x63: ('RESPONSE_REQUESTED', 'BOOLEAN'),
    0x64: ('SENT_REPRESENTING_ADDRTYPE', 'STRING'),
    0x65: ('SENT_REPRESENTING_EMAIL_ADDRESS', 'STRING'),
    0x66: ('ORIGINAL_SENDER_ADDRTYPE', 'STRING'),
    # Email of the original message sender
    0x67: ('ORIGINAL_SENDER_EMAIL_ADDRESS', 'STRING'),
    0x68: ('ORIGINAL_SENT_REPRESENTING_ADDRTYPE', 'STRING'),
    0x69: ('ORIGINAL_SENT_REPRESENTING_EMAIL_ADDRESS', 'STRING'),
    0x70: ('CONVERSATION_TOPIC', 'STRING'),
    0x71: ('CONVERSATION_INDEX', 'BINARY'),
    0x72: ('ORIGINAL_DISPLAY_BCC', 'STRING'),
    0x73: ('ORIGINAL_DISPLAY_CC', 'STRING'),
    0x74: ('ORIGINAL_DISPLAY_TO', 'STRING'),
    0x75: ('RECEIVED_BY_ADDRTYPE', 'STRING'),
    0x76: ('RECEIVED_BY_EMAIL_ADDRESS', 'STRING'),
    0x77: ('RCVD_REPRESENTING_ADDRTYPE', 'STRING'),
    0x78: ('RCVD_REPRESENTING_EMAIL_ADDRESS', 'STRING'),
    0x79: ('ORIGINAL_AUTHOR_ADDRTYPE', 'STRING'),
    0x7A: ('ORIGINAL_AUTHOR_EMAIL_ADDRESS', 'STRING'),
    0x7B: ('ORIGINALLY_INTENDED_RECIP_ADDRTYPE', 'STRING'),
    0x7C: ('ORIGINALLY_INTENDED_RECIP_EMAIL_ADDRESS', 'STRING'),
    0x7D: ('TRANSPORT_MESSAGE_HEADERS', 'STRING'),
    0x7E: ('DELEGATION', 'BINARY'),
    0x7F: ('TNEF_CORRELATION_KEY', 'BINARY'),
    0x1000: ('BODY', 'STRING'),
    0x1001: ('REPORT_TEXT', 'STRING'),
    0x1002: ('ORIGINATOR_AND_DL_EXPANSION_HISTORY', 'BINARY'),
    0x1003: ('REPORTING_DL_NAME', 'BINARY'),
    0x1004: ('REPORTING_MTA_CERTIFICATE', 'BINARY'),
    0x1006: ('RTF_SYNC_BODY_CRC', 'I4'),
    0x1007: ('RTF_SYNC_BODY_COUNT', 'I4'),
    0x1008: ('RTF_SYNC_BODY_TAG', 'STRING'),
    0x1009: ('RTF_COMPRESSED', 'BINARY'),
    0x1010: ('RTF_SYNC_PREFIX_COUNT', 'I4'),
    0x1011: ('RTF_SYNC_TRAILING_COUNT', 'I4'),
    0x1012: ('ORIGINALLY_INTENDED_RECIP_ENTRYID', 'BINARY'),
    0x0C00: ('CONTENT_INTEGRITY_CHECK', 'BINARY'),
    0x0C01: ('EXPLICIT_CONVERSION', 'I4'),
    0x0C02: ('IPM_RETURN_REQUESTED', 'BOOLEAN'),
    0x0C03: ('MESSAGE_TOKEN', 'BINARY'),
    0x0C04: ('NDR_REASON_CODE', 'I4'),
    0x0C05: ('NDR_DIAG_CODE', 'I4'),
    0x0C06: ('NON_RECEIPT_NOTIFICATION_REQUESTED', 'BOOLEAN'),
    0x0C07: ('DELIVERY_POINT', 'I4'),
    0x0C08: ('ORIGINATOR_NON_DELIVERY_REPORT_REQUESTED', 'BOOLEAN'),
    0x0C09: ('ORIGINATOR_REQUESTED_ALTERNATE_RECIPIENT', 'BINARY'),
    0x0C0A: ('PHYSICAL_DELIVERY_BUREAU_FAX_DELIVERY', 'BOOLEAN'),
    0x0C0B: ('PHYSICAL_DELIVERY_MODE', 'I4'),
    0x0C0C: ('PHYSICAL_DELIVERY_REPORT_REQUEST', 'I4'),
    0x0C0D: ('PHYSICAL_FORWARDING_ADDRESS', 'BINARY'),
    0x0C0E: ('PHYSICAL_FORWARDING_ADDRESS_REQUESTED', 'BOOLEAN'),
    0x0C0F: ('PHYSICAL_FORWARDING_PROHIBITED', 'BOOLEAN'),
    0x0C10: ('PHYSICAL_RENDITION_ATTRIBUTES', 'BINARY'),
    0x0C11: ('PROOF_OF_DELIVERY', 'BINARY'),
    0x0C12: ('PROOF_OF_DELIVERY_REQUESTED', 'BOOLEAN'),
    0x0C13: ('RECIPIENT_CERTIFICATE', 'BINARY'),
    0x0C14: ('RECIPIENT_NUMBER_FOR_ADVICE', 'STRING'),
    0x0C15: ('RECIPIENT_TYPE', 'I4'),
    0x0C16: ('REGISTERED_MAIL_TYPE', 'I4'),
    0x0C17: ('REPLY_REQUESTED', 'BOOLEAN'),
    0x0C18: ('REQUESTED_DELIVERY_METHOD', 'I4'),
    0x0C19: ('SENDER_ENTRYID', 'BINARY'),
    0x0C1A: ('SENDER_NAME', 'STRING'),
    0x0C1B: ('SUPPLEMENTARY_INFO', 'STRING'),
    0x0C1C: ('TYPE_OF_MTS_USER', 'I4'),
    0x0C1D: ('SENDER_SEARCH_KEY', 'BINARY'),
    0x0C1E: ('SENDER_ADDRTYPE', 'STRING'),
    0x0C1F: ('SENDER_EMAIL_ADDRESS', 'STRING'),
    0x0E00: ('CURRENT_VERSION', 'I8'),
    0x0E01: ('DELETE_AFTER_SUBMIT', 'BOOLEAN'),
    0x0E02: ('DISPLAY_BCC', 'STRING'),
    0x0E03: ('DISPLAY_CC', 'STRING'),
    0x0E04: ('DISPLAY_TO', 'STRING'),
    0x0E05: ('PARENT_DISPLAY', 'STRING'),
    0x0E06: ('MESSAGE_DELIVERY_TIME', 'SYSTIME'),
    0x0E07: ('MESSAGE_FLAGS', 'I4'),
    0x0E08: ('MESSAGE_SIZE', 'I4'),
    0x0E09: ('PARENT_ENTRYID', 'BINARY'),
    0x0E0A: ('SENTMAIL_ENTRYID', 'BINARY'),
    0x0E0C: ('CORRELATE', 'BOOLEAN'),
    0x0E0D: ('CORRELATE_MTSID', 'BINARY'),
    0x0E0E: ('DISCRETE_VALUES', 'BOOLEAN'),
    0x0E0F: ('RESPONSIBILITY', 'BOOLEAN'),
    0x0E10: ('SPOOLER_STATUS', 'I4'),
    0x0E11: ('TRANSPORT_STATUS', 'I4'),
    0x0E12: ('MESSAGE_RECIPIENTS', 'OBJECT'),
    0x0E13: ('MESSAGE_ATTACHMENTS', 'OBJECT'),
    0x0E14: ('SUBMIT_FLAGS', 'I4'),
    0x0E15: ('RECIPIENT_STATUS', 'I4'),
    0x0E16: ('TRANSPORT_KEY', 'I4'),
    0x0E17: ('MSG_STATUS', 'I4'),
    0x0E18: ('MESSAGE_DOWNLOAD_TIME', 'I4'),
    0x0E19: ('CREATION_VERSION', 'I8'),
    0x0E1A: ('MODIFY_VERSION', 'I8'),
    0x0E1B: ('HASATTACH', 'BOOLEAN'),
    0x0E1D: ('NORMALIZED_SUBJECT', 'STRING'),
    0x0E1F: ('RTF_IN_SYNC', 'BOOLEAN'),
    0x0E20: ('ATTACH_SIZE', 'I4'),
    0x0E21: ('ATTACH_NUM', 'I4'),
    0x0E22: ('PREPROCESS', 'BOOLEAN'),
    0x0E25: ('ORIGINATING_MTA_CERTIFICATE', 'BINARY'),
    0x0E26: ('PROOF_OF_SUBMISSION', 'BINARY'),
    # A unique identifier for editing the properties of a MAPI object
    0x0FFF: ('ENTRYID', 'BINARY'),
    # The type of an object
    0x0FFE: ('OBJECT_TYPE', 'I4'),
    0x0FFD: ('ICON', 'BINARY'),
    0x0FFC: ('MINI_ICON', 'BINARY'),
    0x0FFB: ('STORE_ENTRYID', 'BINARY'),
    0x0FFA: ('STORE_RECORD_KEY', 'BINARY'),
    # Binary identifer for an individual object
    0x0FF9: ('RECORD_KEY', 'BINARY'),
    0x0FF8: ('MAPPING_SIGNATURE', 'BINARY'),
    0x0FF7: ('ACCESS_LEVEL', 'I4'),
    # The primary key of a column in a table
    0x0FF6: ('INSTANCE_KEY', 'BINARY'),
    0x0FF5: ('ROW_TYPE', 'I4'),
    0x0FF4: ('ACCESS', 'I4'),
    0x3000: ('ROWID', 'I4'),
    # The name to display for a given MAPI object
    0x3001: ('DISPLAY_NAME', 'STRING'),
    0x3002: ('ADDRTYPE', 'STRING'),
    # An email address
    0x3003: ('EMAIL_ADDRESS', 'STRING'),
    # A comment field
    0x3004: ('COMMENT', 'STRING'),
    0x3005: ('DEPTH', 'I4'),
    # Provider-defined display name for a service provider
    0x3006: ('PROVIDER_DISPLAY', 'STRING'),
    # The time an object was created
    0x3007: ('CREATION_TIME', 'SYSTIME'),
    # The time an object was last modified
    0x3008: ('LAST_MODIFICATION_TIME', 'SYSTIME'),
    # Flags describing a service provider, message service, or status object
    0x3009: ('RESOURCE_FLAGS', 'I4'),
    # The name of a provider dll, minus any "32" suffix and ".dll"
    0x300A: ('PROVIDER_DLL_NAME', 'STRING'),
    0x300B: ('SEARCH_KEY', 'BINARY'),
    0x300C: ('PROVIDER_UID', 'BINARY'),
    0x300D: ('PROVIDER_ORDINAL', 'I4'),
    0x3301: ('FORM_VERSION', 'STRING'),
    0x3302: ('FORM_CLSID', 'CLSID'),
    0x3303: ('FORM_CONTACT_NAME', 'STRING'),
    0x3304: ('FORM_CATEGORY', 'STRING'),
    0x3305: ('FORM_CATEGORY_SUB', 'STRING'),
    0x3306: ('FORM_HOST_MAP', 'MV_LONG'),
    0x3307: ('FORM_HIDDEN', 'BOOLEAN'),
    0x3308: ('FORM_DESIGNER_NAME', 'STRING'),
    0x3309: ('FORM_DESIGNER_GUID', 'CLSID'),
    0x330A: ('FORM_MESSAGE_BEHAVIOR', 'I4'),
    # Is this row the default message store?
    0x3400: ('DEFAULT_STORE', 'BOOLEAN'),
    0x340D: ('STORE_SUPPORT_MASK', 'I4'),
    0x340E: ('STORE_STATE', 'I4'),
    0x3410: ('IPM_SUBTREE_SEARCH_KEY', 'BINARY'),
    0x3411: ('IPM_OUTBOX_SEARCH_KEY', 'BINARY'),
    0x3412: ('IPM_WASTEBASKET_SEARCH_KEY', 'BINARY'),
    0x3413: ('IPM_SENTMAIL_SEARCH_KEY', 'BINARY'),
    # Provder-defined message store type
    0x3414: ('MDB_PROVIDER', 'BINARY'),
    0x3415: ('RECEIVE_FOLDER_SETTINGS', 'OBJECT'),
    0x35DF: ('VALID_FOLDER_MASK', 'I4'),
    0x35E0: ('IPM_SUBTREE_ENTRYID', 'BINARY'),
    0x35E2: ('IPM_OUTBOX_ENTRYID', 'BINARY'),
    0x35E3: ('IPM_WASTEBASKET_ENTRYID', 'BINARY'),
    0x35E4: ('IPM_SENTMAIL_ENTRYID', 'BINARY'),
    0x35E5: ('VIEWS_ENTRYID', 'BINARY'),
    0x35E6: ('COMMON_VIEWS_ENTRYID', 'BINARY'),
    0x35E7: ('FINDER_ENTRYID', 'BINARY'),
    0x3600: ('CONTAINER_FLAGS', 'I4'),
    0x3601: ('FOLDER_TYPE', 'I4'),
    0x3602: ('CONTENT_COUNT', 'I4'),
    0x3603: ('CONTENT_UNREAD', 'I4'),
    0x3604: ('CREATE_TEMPLATES', 'OBJECT'),
    0x3605: ('DETAILS_TABLE', 'OBJECT'),
    0x3607: ('SEARCH', 'OBJECT'),
    0x3609: ('SELECTABLE', 'BOOLEAN'),
    0x360A: ('SUBFOLDERS', 'BOOLEAN'),
    0x360B: ('STATUS', 'I4'),
    0x360C: ('ANR', 'STRING'),
    0x360D: ('CONTENTS_SORT_ORDER', 'MV_LONG'),
    0x360E: ('CONTAINER_HIERARCHY', 'OBJECT'),
    0x360F: ('CONTAINER_CONTENTS', 'OBJECT'),
    0x3610: ('FOLDER_ASSOCIATED_CONTENTS', 'OBJECT'),
    0x3611: ('DEF_CREATE_DL', 'BINARY'),
    0x3612: ('DEF_CREATE_MAILUSER', 'BINARY'),
    0x3613: ('CONTAINER_CLASS', 'STRING'),
    0x3614: ('CONTAINER_MODIFY_VERSION', 'I8'),
    0x3615: ('AB_PROVIDER_ID', 'BINARY'),
    0x3616: ('DEFAULT_VIEW_ENTRYID', 'BINARY'),
    0x3617: ('ASSOC_CONTENT_COUNT', 'I4'),
    0x3700: ('ATTACHMENT_X400_PARAMETERS', 'BINARY'),
    0x3701: ('ATTACH_DATA_OBJ', 'OBJECT'),
    0x3701: ('ATTACH_DATA_BIN', 'BINARY'),
    0x3702: ('ATTACH_ENCODING', 'BINARY'),
    0x3703: ('ATTACH_EXTENSION', 'STRING'),
    0x3704: ('ATTACH_FILENAME', 'STRING'),
    0x3705: ('ATTACH_METHOD', 'I4'),
    0x3707: ('ATTACH_LONG_FILENAME', 'STRING'),
    0x3708: ('ATTACH_PATHNAME', 'STRING'),
    0x370A: ('ATTACH_TAG', 'BINARY'),
    0x370B: ('RENDERING_POSITION', 'I4'),
    0x370C: ('ATTACH_TRANSPORT_NAME', 'STRING'),
    0x370D: ('ATTACH_LONG_PATHNAME', 'STRING'),
    0x370E: ('ATTACH_MIME_TAG', 'STRING'),
    0x370F: ('ATTACH_ADDITIONAL_INFO', 'BINARY'),
    0x3900: ('DISPLAY_TYPE', 'I4'),
    0x3902: ('TEMPLATEID', 'BINARY'),
    0x3904: ('PRIMARY_CAPABILITY', 'BINARY'),
    0x39FF: ('7BIT_DISPLAY_NAME', 'STRING'),
    0x3A00: ('ACCOUNT', 'STRING'),
    0x3A01: ('ALTERNATE_RECIPIENT', 'BINARY'),
    0x3A02: ('CALLBACK_TELEPHONE_NUMBER', 'STRING'),
    0x3A03: ('CONVERSION_PROHIBITED', 'BOOLEAN'),
    0x3A04: ('DISCLOSE_RECIPIENTS', 'BOOLEAN'),
    0x3A05: ('GENERATION', 'STRING'),
    0x3A06: ('GIVEN_NAME', 'STRING'),
    0x3A07: ('GOVERNMENT_ID_NUMBER', 'STRING'),
    0x3A08: ('BUSINESS_TELEPHONE_NUMBER', 'STRING'),
    0x3A09: ('HOME_TELEPHONE_NUMBER', 'STRING'),
    0x3A0A: ('INITIALS', 'STRING'),
    0x3A0B: ('KEYWORD', 'STRING'),
    0x3A0C: ('LANGUAGE', 'STRING'),
    0x3A0D: ('LOCATION', 'STRING'),
    0x3A0E: ('MAIL_PERMISSION', 'BOOLEAN'),
    0x3A0F: ('MHS_COMMON_NAME', 'STRING'),
    0x3A10: ('ORGANIZATIONAL_ID_NUMBER', 'STRING'),
    0x3A11: ('SURNAME', 'STRING'),
    0x3A12: ('ORIGINAL_ENTRYID', 'BINARY'),
    0x3A13: ('ORIGINAL_DISPLAY_NAME', 'STRING'),
    0x3A14: ('ORIGINAL_SEARCH_KEY', 'BINARY'),
    0x3A15: ('POSTAL_ADDRESS', 'STRING'),
    0x3A16: ('COMPANY_NAME', 'STRING'),
    0x3A17: ('TITLE', 'STRING'),
    0x3A18: ('DEPARTMENT_NAME', 'STRING'),
    0x3A19: ('OFFICE_LOCATION', 'STRING'),
    0x3A1A: ('PRIMARY_TELEPHONE_NUMBER', 'STRING'),
    0x3A1B: ('BUSINESS2_TELEPHONE_NUMBER', 'STRING'),
    0x3A1C: ('MOBILE_TELEPHONE_NUMBER', 'STRING'),
    0x3A1D: ('RADIO_TELEPHONE_NUMBER', 'STRING'),
    0x3A1E: ('CAR_TELEPHONE_NUMBER', 'STRING'),
    0x3A1F: ('OTHER_TELEPHONE_NUMBER', 'STRING'),
    0x3A20: ('TRANSMITABLE_DISPLAY_NAME', 'STRING'),
    0x3A21: ('PAGER_TELEPHONE_NUMBER', 'STRING'),
    0x3A22: ('USER_CERTIFICATE', 'BINARY'),
    0x3A23: ('PRIMARY_FAX_NUMBER', 'STRING'),
    0x3A24: ('BUSINESS_FAX_NUMBER', 'STRING'),
    0x3A25: ('HOME_FAX_NUMBER', 'STRING'),
    0x3A26: ('COUNTRY', 'STRING'),
    0x3A27: ('LOCALITY', 'STRING'),
    0x3A28: ('STATE_OR_PROVINCE', 'STRING'),
    0x3A29: ('STREET_ADDRESS', 'STRING'),
    0x3A2A: ('POSTAL_CODE', 'STRING'),
    0x3A2B: ('POST_OFFICE_BOX', 'STRING'),
    0x3A2C: ('TELEX_NUMBER', 'STRING'),
    0x3A2D: ('ISDN_NUMBER', 'STRING'),
    0x3A2E: ('ASSISTANT_TELEPHONE_NUMBER', 'STRING'),
    0x3A2F: ('HOME2_TELEPHONE_NUMBER', 'STRING'),
    0x3A30: ('ASSISTANT', 'STRING'),
    0x3A40: ('SEND_RICH_INFO', 'BOOLEAN'),
    0x3A41: ('WEDDING_ANNIVERSARY', 'SYSTIME'),
    0x3A42: ('BIRTHDAY', 'SYSTIME'),
    0x3A43: ('HOBBIES', 'STRING'),
    0x3A44: ('MIDDLE_NAME', 'STRING'),
    0x3A45: ('DISPLAY_NAME_PREFIX', 'STRING'),
    0x3A46: ('PROFESSION', 'STRING'),
    0x3A47: ('PREFERRED_BY_NAME', 'STRING'),
    0x3A48: ('SPOUSE_NAME', 'STRING'),
    0x3A49: ('COMPUTER_NETWORK_NAME', 'STRING'),
    0x3A4A: ('CUSTOMER_ID', 'STRING'),
    0x3A4B: ('TTYTDD_PHONE_NUMBER', 'STRING'),
    0x3A4C: ('FTP_SITE', 'STRING'),
    0x3A4D: ('GENDER', 'I2'),
    0x3A4E: ('MANAGER_NAME', 'STRING'),
    0x3A4F: ('NICKNAME', 'STRING'),
    0x3A50: ('PERSONAL_HOME_PAGE', 'STRING'),
    0x3A51: ('BUSINESS_HOME_PAGE', 'STRING'),
    0x3A52: ('CONTACT_VERSION', 'CLSID'),
    0x3A53: ('CONTACT_ENTRYIDS', 'MV_BINARY'),
    0x3A54: ('CONTACT_ADDRTYPES', 'MV_STRING'),
    0x3A55: ('CONTACT_DEFAULT_ADDRESS_INDEX', 'I4'),
    0x3A56: ('CONTACT_EMAIL_ADDRESSES', 'MV_STRING'),
    0x3A57: ('COMPANY_MAIN_PHONE_NUMBER', 'STRING'),
    0x3A58: ('CHILDRENS_NAMES', 'MV_STRING'),
    0x3A59: ('HOME_ADDRESS_CITY', 'STRING'),
    0x3A5A: ('HOME_ADDRESS_COUNTRY', 'STRING'),
    0x3A5B: ('HOME_ADDRESS_POSTAL_CODE', 'STRING'),
    0x3A5C: ('HOME_ADDRESS_STATE_OR_PROVINCE', 'STRING'),
    0x3A5D: ('HOME_ADDRESS_STREET', 'STRING'),
    0x3A5E: ('HOME_ADDRESS_POST_OFFICE_BOX', 'STRING'),
    0x3A5F: ('OTHER_ADDRESS_CITY', 'STRING'),
    0x3A60: ('OTHER_ADDRESS_COUNTRY', 'STRING'),
    0x3A61: ('OTHER_ADDRESS_POSTAL_CODE', 'STRING'),
    0x3A62: ('OTHER_ADDRESS_STATE_OR_PROVINCE', 'STRING'),
    0x3A63: ('OTHER_ADDRESS_STREET', 'STRING'),
    0x3A64: ('OTHER_ADDRESS_POST_OFFICE_BOX', 'STRING'),
    0x3D00: ('STORE_PROVIDERS', 'BINARY'),
    0x3D01: ('AB_PROVIDERS', 'BINARY'),
    0x3D02: ('TRANSPORT_PROVIDERS', 'BINARY'),
    0x3D04: ('DEFAULT_PROFILE', 'BOOLEAN'),
    0x3D05: ('AB_SEARCH_PATH', 'MV_BINARY'),
    0x3D06: ('AB_DEFAULT_DIR', 'BINARY'),
    0x3D07: ('AB_DEFAULT_PAB', 'BINARY'),
    0x3D09: ('SERVICE_NAME', 'STRING'),
    0x3D0A: ('SERVICE_DLL_NAME', 'STRING'),
    0x3D0B: ('SERVICE_ENTRY_NAME', 'STRING'),
    0x3D0C: ('SERVICE_UID', 'BINARY'),
    0x3D0D: ('SERVICE_EXTRA_UIDS', 'BINARY'),
    0x3D0E: ('SERVICES', 'BINARY'),
    0x3D0F: ('SERVICE_SUPPORT_FILES', 'MV_STRING'),
    0x3D10: ('SERVICE_DELETE_FILES', 'MV_STRING'),
    0x3D11: ('AB_SEARCH_PATH_UPDATE', 'BINARY'),
    0x3D12: ('PROFILE_NAME', 'STRING'),
    0x3E00: ('IDENTITY_DISPLAY', 'STRING'),
    0x3E01: ('IDENTITY_ENTRYID', 'BINARY'),
    0x3E02: ('RESOURCE_METHODS', 'I4'),
    # Service provider type
    0x3E03: ('RESOURCE_TYPE', 'I4'),
    0x3E04: ('STATUS_CODE', 'I4'),
    0x3E05: ('IDENTITY_SEARCH_KEY', 'BINARY'),
    0x3E06: ('OWN_STORE_ENTRYID', 'BINARY'),
    0x3E07: ('RESOURCE_PATH', 'STRING'),
    0x3E08: ('STATUS_STRING', 'STRING'),
    0x3E09: ('X400_DEFERRED_DELIVERY_CANCEL', 'BOOLEAN'),
    0x3E0A: ('HEADER_FOLDER_ENTRYID', 'BINARY'),
    0x3E0B: ('REMOTE_PROGRESS', 'I4'),
    0x3E0C: ('REMOTE_PROGRESS_TEXT', 'STRING'),
    0x3E0D: ('REMOTE_VALIDATE_OK', 'BOOLEAN'),
    0x3F00: ('CONTROL_FLAGS', 'I4'),
    0x3F01: ('CONTROL_STRUCTURE', 'BINARY'),
    0x3F02: ('CONTROL_TYPE', 'I4'),
    0x3F03: ('DELTAX', 'I4'),
    0x3F04: ('DELTAY', 'I4'),
    0x3F05: ('XPOS', 'I4'),
    0x3F06: ('YPOS', 'I4'),
    0x3F07: ('CONTROL_ID', 'BINARY'),
    0x3F08: ('INITIAL_DETAILS_PANE', 'I4'),
}


# COMMAND-LINE ENTRY POINT


if __name__ == "__main__":
    # If no command-line arguments are given, convert the .msg
    # file on STDIN to .eml format on STDOUT.
    if len(sys.argv) <= 1:
        print(load(sys.stdin), file=sys.stdout)

    # Otherwise, for each file mentioned on the command-line,
    # convert it and save it to a file with ".eml" appended
    # to the name.
    else:
        for fn in sys.argv[1:]:
            print(fn + "...")
            msg = load(fn)
            with open(fn + ".eml", "wb") as f:
                f.write(msg.as_bytes())