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Fannst Banner

Fannst ESMTP Server Versie 2.0

Een volledige SMTP / ESMTP Server, met ondersteuning voor ESMTP Authenticatie, Relaying etcetera. Naast bevat FSMTP-V2 ook alle benodigde spam checks.

Wat kan FSMTP nu ?

  1. IPv6 en IPv4 ondersteuning
  2. Emails ontvangen, versturen en relayen
  3. Emails opslaan
  4. Emails samen stellen ( een MIME bericht )
  5. Emails uitlezen ( parsen )
  6. Emails verzenden naar onbekende systemen
  7. Emails ontvangen van onbekende systemen
  8. SPF validatie uitvoeren op berichten
  9. DKIM validatie uitvoeren op berichten, met RSA-SHA1 of RSA-SHA256, naast dat heeft deze functie ook ondersteuning voor deze canonicalization algoritmes ( Relaxed/Relaxed, Relaxed/Simple, Simple/Relaxed, Simple/Simple )
  10. DMARC validatie uitvoeren op berichten en spam emails behandelen zoals bescheven in DMARC record
  11. Accounts en domeinen toevoegen via de CLI
  12. Emails leveren aan clients via het POP3 protocol
  13. Emails ondertekeken met DKIM
  14. Verzend fouten terug rapporteren naar gebruiker
  15. Met meerdere threads berichten ontvangen
  16. POP3 en ESMTP verbindingen met SSL accepteren
  17. Het weigeren van berichten wanneer deze duidelijk niet van het domein vandaan komen die ze beweren

Waar wordt aan gewerkt ?

  1. IMAP Server (IMAP4rev1)
  2. Verbetering leesbaarheid code

Wat bibliotheken heb ik nodig ?

  1. JSON Github
  2. Hayai Github
  3. HiRedis Github
  4. DataStax CQL Client Github
  5. Inja Template Engine Github
  6. JSONCPP Github
  7. Catch2 Github

Welke Linux distributies zijn ondersteund ?

  1. Debian / Ubuntu / Ubuntu Server
  2. Arch / Manjaro

Hoe installeer ik het ?

Voor uw gemak is hier een scriptje voor, die alles doet en zelfs de service aanmaakt.

git clone https://github.com/skywa04885/fsmtp-v2/
sudo chmod +x ./install.py
./install.py

Hoe gebruik ik het ?

  1. Maak een map genaamd env/keys
  2. Doe uw SSL certificaat erin met de naam 'cert.pem'
  3. Doe uw SSL sleutel erin met de naam 'key.pem'
  4. Plaats uw DKIM RSA-Keypair erin met de namen: 'dkim-private.pem', 'dkim-public.pem'
  5. Vergeet niet de publieke sleuten van uw DKIM keypair the plaatsen in uw DNS server onder de naam 'default._keyselector'

Bij het gebruiken van de FSMTP server kunt u ook opdrachten meegeven, als u -h als argument toevoegd, kunt u het help menu zien, deze zal ik hieronder voor het gemak zetten:

Gebruik: 
sudo fsmtp [arguments]

Opdrachten: 
-h, -help: 	Print de lijst met beschikbare opdrachten.
-t, -test: 	Voer tests uit op de vitale functies van de server, zoals database verbinding.
-a, -adduser: 	Adds an user to the database
-d, -domainadd:	Adds an new domain.
-m, -mailtest: 	Sends an email.

Welke systemen werkt FSMTP-V2 mee ?

FSMTP-V2 is getest en werkt op deze diensten:

  1. Outlook en alle bedrijven die dit gebruiken
  2. Yahoo Mail
  3. Google Mail
  4. Andere ESMTP & SMTP Servers

een voorbeeld van een ESMTP Conversatie ( intern, met FSMTP-V2 Extensions ):

S -> 220 LUKERIEFF_MCLUST_A001 Fannst ESMTP Mail service ready at Fri, 11 Sep 2020 20:07:18 CEST - fsmtp
C -> FCAPA
S -> 601 6.1.1 FSMTP-V2 Extensions implemented, Proceed. - fsmtp
C -> SU
S -> 600 6.1.0 Access granted for 145-53-228-5.fixed.kpn.net [145.53.228.5] - fsmtp
C -> EHLO fannst.nl
S -> 250-smtp.fannst.nl, at your service 145-53-228-5.fixed.kpn.net [145.53.228.5]
   + 250-AUTH PLAIN
   + 250-STARTTLS
   + 250-SMTPUTF8
   + 250-SIZE 10485760
   + 250 ENHANCEDSTATUSCODES
C -> STARTTLS
S -> 220 5.7.0 Ready to start TLS - fsmtp

(( Upgrading to TLS ))

C -> FCAPA
S -> 601 6.1.1 FSMTP-V2 Extensions implemented, Proceed. - fsmtp
C -> SU
S -> 600 6.1.0 Access granted for 145-53-228-5.fixed.kpn.net [145.53.228.5] - fsmtp
C -> EHLO fannst.nl
S -> 250-smtp.fannst.nl, at your service 145-53-228-5.fixed.kpn.net [145.53.228.5]
   + 250-AUTH PLAIN
   + 250-SMTPUTF8
   + 250-SIZE 10485760
   + 250 ENHANCEDSTATUSCODES
C -> MAIL FROM: lrieff@fannst.nl
S -> 250 2.1.0 OK, proceed [luke.rieff@gmail.com] - fsmtp
C -> RCPT TO: webmaster@fannst.nl
S -> 250 2.1.5 OK, proceed [webmaster@fannst.nl] - fsmtp
C -> DATA
S -> 354 End data with <CR><LF>.<CR><LF> - fsmtp

(( Sends message body ))

S -> 250 2.6.0 OK, message queued <P2luzwlzea7BvtPdW4hM6k5ymOQqX7kZuP9O2M8qXXa0S5qt4M7owG13PzaqTYPV@mailer.fannst.nl> - fsmtp
C -> QUIT
S -> 221 2.0.0 Closing connection - fsmtp

Een voorbeeld van de Fannst Mailer:

Fri, 11 Sep 2020 20:00:15->(INFO@Mail): Enter type [c: custom, d: default]: c
Fri, 11 Sep 2020 20:00:16->(INFO@Mail): Enter subject: Test Message
Fri, 11 Sep 2020 20:00:19->(INFO@Mail): Enter from: webmaster@fannst.nl
Fri, 11 Sep 2020 20:00:23->(INFO@Mail): Enter to: luke.rieff@gmail.com
Fri, 11 Sep 2020 20:00:26->(INFO@SMTPClient): Voorbereiden ...
Fri, 11 Sep 2020 20:00:26->(DEBUG@MailComposer): Timer@MessageComposer started !
Fri, 11 Sep 2020 20:00:26->(DEBUG@MailComposer): Begonnen met opbouw van MIME Message
Fri, 11 Sep 2020 20:00:26->(DEBUG@MailComposer): Verwerkings datum: Fri, 11 Sep 2020 20:00:26 (CEST)
Fri, 11 Sep 2020 20:00:26->(DEBUG@MailComposer): Bericht ID: <lCQVaz0IBgu10EtILY4lg9p9vTNYxYOpFQqvsfAGdPnzWPgBZKmsXNryZYrPvfTc@mailer.fannst.nl>
Fri, 11 Sep 2020 20:00:26->(DEBUG@MailComposer): Van: <webmaster@fannst.nl>
Fri, 11 Sep 2020 20:00:26->(DEBUG@MailComposer): Naar: <luke.rieff@gmail.com>
Fri, 11 Sep 2020 20:00:26->(DEBUG@MailComposer): sections.size() == 0, generating default one ...
Fri, 11 Sep 2020 20:00:26->(DEBUG@MailComposer): Result: '
X-Mailer: FSMTP-V2
X-Fannst-NodeID: LUKERIEFF_MCLUST_A001
X-Made-By: Luke A.C.A. Rieff
Subject: Test Message
Date: Fri, 11 Sep 2020 20:00:26 (CEST)
MIME-Version: 1.0
Message-ID: <lCQVaz0IBgu10EtILY4lg9p9vTNYxYOpFQqvsfAGdPnzWPgBZKmsXNryZYrPvfTc@mailer.fannst.nl>
To: <luke.rieff@gmail.com>
From: <webmaster@fannst.nl>
Content-Type: multipart/alternative; boundary="--tYnHu7fRxVsm3dcHYEa7KjZuk9hy8bVkfTDiWL"

----tYnHu7fRxVsm3dcHYEa7KjZuk9hy8bVkfTDiWL
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable

<p>
<strong>Roses are red.</strong><br />
<small>Violets are blue.</small><br />
<em>Someone did NOT specify an message body.</em></p>

----tYnHu7fRxVsm3dcHYEa7KjZuk9hy8bVkfTDiWL--
'
Fri, 11 Sep 2020 20:00:26->(DEBUG@MailComposer): Timer@MessageComposer ended in [0.555776ms, 555959us]
Fri, 11 Sep 2020 20:00:26->(DEBUG@DKIMSigner): Timer@Signer started !
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Microsoft rotzooi header genegeerd: X-Mailer
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Microsoft rotzooi header genegeerd: X-Fannst-NodeID
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Microsoft rotzooi header genegeerd: X-Made-By
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Header [no:0]: 'subject' -> 'Test Message'
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Header [no:1]: 'date' -> 'Fri, 11 Sep 2020 20:00:26 (CEST)'
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Header [no:2]: 'mime-version' -> '1.0'
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Header [no:3]: 'message-id' -> '<lCQVaz0IBgu10EtILY4lg9p9vTNYxYOpFQqvsfAGdPnzWPgBZKmsXNryZYrPvfTc@mailer.fannst.nl>'
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Header [no:4]: 'to' -> '<luke.rieff@gmail.com>'
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Header [no:5]: 'from' -> '<webmaster@fannst.nl>'
Fri, 11 Sep 2020 20:00:26->(PARSER@HeaderParser): Header [no:6]: 'content-type' -> 'multipart/alternative; boundary="--tYnHu7fRxVsm3dcHYEa7KjZuk9hy8bVkfTDiWL"'
Fri, 11 Sep 2020 20:00:26->(DEBUG@DKIMSigner): Started canonicalization of headers and body
Fri, 11 Sep 2020 20:00:26->(DEBUG@DKIMSigner): Canonicalized headers: 
'subject:Test Message
date:Fri, 11 Sep 2020 20:00:26 (CEST)
mime-version:1.0
message-id:<lCQVaz0IBgu10EtILY4lg9p9vTNYxYOpFQqvsfAGdPnzWPgBZKmsXNryZYrPvfTc@mailer.fannst.nl>
to:<luke.rieff@gmail.com>
from:<webmaster@fannst.nl>'
Fri, 11 Sep 2020 20:00:26->(DEBUG@DKIMSigner): Canonicalized body: 
'----tYnHu7fRxVsm3dcHYEa7KjZuk9hy8bVkfTDiWL
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable

<p>
<strong>Roses are red.</strong><br />
<small>Violets are blue.</small><br />
<em>Someone did NOT specify an message body.</em></p>

----tYnHu7fRxVsm3dcHYEa7KjZuk9hy8bVkfTDiWL--'
Fri, 11 Sep 2020 20:00:26->(DEBUG@DKIMSigner): Generated body hash: f+DQL8U72ZwLu1NyiQFXqMS1AQgzoJDNJ6IYIVta2xU=
Fri, 11 Sep 2020 20:00:26->(DEBUG@DKIMSigner): Raw signature: 
'subject:Test Message
date:Fri, 11 Sep 2020 20:00:26 (CEST)
mime-version:1.0
message-id:<lCQVaz0IBgu10EtILY4lg9p9vTNYxYOpFQqvsfAGdPnzWPgBZKmsXNryZYrPvfTc@mailer.fannst.nl>
to:<luke.rieff@gmail.com>
from:<webmaster@fannst.nl>
dkim-signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=fannst.nl; s=default; h=subject:date:mime-version:message-id:to:from; bh=f+DQL8U72ZwLu1NyiQFXqMS1AQgzoJDNJ6IYIVta2xU=; b='
Fri, 11 Sep 2020 20:00:26->(DEBUG@DKIMSigner): Generated signature: ZVIvb3itCw1U2N8u7ktjkzKDZYqsVNK9nuKjPicIIsoXpDR2zI+Rq+jSzGOWVIdnbBgXiFAlyz9kFN9Bv1Wxd3Hth+LAEWyakxw4NUTMOLHNoMWEmi4RXg2NdSf7q4wJUYid3elnqGlwhCMF2Mc3ZpL5nAk/905X1AdB2nse3mns6WVJq/yG+GCyvBHhWcV/jHytFugW6K+3Bwz+PhBD4TA9phsyTae2lPDqLOEfK7oRX5s616RsQnnu3Bom95gjXHH88zM6lYp48kXw64phRAbWRoQWfq7PVjqckgOEfmtVbSJ6idKBUQe2NoYVFHIul3xVyiaT2JQfiPMPi6ydZQ==
Fri, 11 Sep 2020 20:00:26->(DEBUG@DKIMSigner): Final DKIM Signature: 
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fannst.nl; s=default; 
       h=subject:date:mime-version:message-id:to:from; 
       bh=f+DQL8U72ZwLu1NyiQFXqMS1AQgzoJDNJ6IYIVta2xU=; b=ZVIvb3itCw1U2N8u7ktjkzKDZYqsVNK9nuKjPic
        IIsoXpDR2zI+Rq+jSzGOWVIdnbBgXiFAlyz9kFN9Bv1Wxd3Hth+LAEWyakxw4NUTMOLHNoMWEmi4RXg2NdSf7q4wJU
        Yid3elnqGlwhCMF2Mc3ZpL5nAk/905X1AdB2nse3mns6WVJq/yG+GCyvBHhWcV/jHytFugW6K+3Bwz+PhBD4TA9phs
        yTae2lPDqLOEfK7oRX5s616RsQnnu3Bom95gjXHH88zM6lYp48kXw64phRAbWRoQWfq7PVjqckgOEfmtVbSJ6idKBU
        Qe2NoYVFHIul3xVyiaT2JQfiPMPi6ydZQ==
Fri, 11 Sep 2020 20:00:26->(DEBUG@DKIMSigner): Timer@Signer ended in [3.5735ms, 3573530us]
X-Mailer: FSMTP-V2
X-Fannst-NodeID: LUKERIEFF_MCLUST_A001
X-Made-By: Luke A.C.A. Rieff
Subject: Test Message
Date: Fri, 11 Sep 2020 20:00:26 (CEST)
MIME-Version: 1.0
Message-ID: <lCQVaz0IBgu10EtILY4lg9p9vTNYxYOpFQqvsfAGdPnzWPgBZKmsXNryZYrPvfTc@mailer.fannst.nl>
To: <luke.rieff@gmail.com>
From: <webmaster@fannst.nl>
Content-Type: multipart/alternative; boundary="--tYnHu7fRxVsm3dcHYEa7KjZuk9hy8bVkfTDiWL"
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fannst.nl; s=default; 
       h=subject:date:mime-version:message-id:to:from; 
       bh=f+DQL8U72ZwLu1NyiQFXqMS1AQgzoJDNJ6IYIVta2xU=; b=ZVIvb3itCw1U2N8u7ktjkzKDZYqsVNK9nuKjPic
        IIsoXpDR2zI+Rq+jSzGOWVIdnbBgXiFAlyz9kFN9Bv1Wxd3Hth+LAEWyakxw4NUTMOLHNoMWEmi4RXg2NdSf7q4wJU
        Yid3elnqGlwhCMF2Mc3ZpL5nAk/905X1AdB2nse3mns6WVJq/yG+GCyvBHhWcV/jHytFugW6K+3Bwz+PhBD4TA9phs
        yTae2lPDqLOEfK7oRX5s616RsQnnu3Bom95gjXHH88zM6lYp48kXw64phRAbWRoQWfq7PVjqckgOEfmtVbSJ6idKBU
        Qe2NoYVFHIul3xVyiaT2JQfiPMPi6ydZQ==

----tYnHu7fRxVsm3dcHYEa7KjZuk9hy8bVkfTDiWL
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable

<p>
<strong>Roses are red.</strong><br />
<small>Violets are blue.</small><br />
<em>Someone did NOT specify an message body.</em></p>

----tYnHu7fRxVsm3dcHYEa7KjZuk9hy8bVkfTDiWL--

Fri, 11 Sep 2020 20:00:26->(DEBUG@DNS Resolver): Vinden van records voor: gmail.com
Fri, 11 Sep 2020 20:00:26->(DEBUG@DNS Resolver): Antwoord lengte: 150/2048 octets
Fri, 11 Sep 2020 20:00:26->(DEBUG@DNS Resolver): DNS Record aantal: 5
Fri, 11 Sep 2020 20:00:26->(DEBUG@DNS Resolver): DNS Record [nm: 'gmail.com', type: 15, ttl: 3430, class: 1, len: 27]: gmail-smtp-in.l.google.com
Fri, 11 Sep 2020 20:00:26->(DEBUG@DNS Resolver): DNS Record [nm: 'gmail.com', type: 15, ttl: 3430, class: 1, len: 9]: alt4.gmail-smtp-in.l.google.com
Fri, 11 Sep 2020 20:00:26->(DEBUG@DNS Resolver): DNS Record [nm: 'gmail.com', type: 15, ttl: 3430, class: 1, len: 9]: alt3.gmail-smtp-in.l.google.com
Fri, 11 Sep 2020 20:00:26->(DEBUG@DNS Resolver): DNS Record [nm: 'gmail.com', type: 15, ttl: 3430, class: 1, len: 9]: alt2.gmail-smtp-in.l.google.com
Fri, 11 Sep 2020 20:00:26->(DEBUG@DNS Resolver): DNS Record [nm: 'gmail.com', type: 15, ttl: 3430, class: 1, len: 9]: alt1.gmail-smtp-in.l.google.com
Fri, 11 Sep 2020 20:00:26->(INFO@SMTPClient): Server toegevoegd: 108.177.127.27
Fri, 11 Sep 2020 20:00:26->(INFO@SMTPClient): Server toegevoegd: 173.194.201.26
Fri, 11 Sep 2020 20:00:26->(INFO@SMTPClient): Server toegevoegd: 74.125.28.26
Fri, 11 Sep 2020 20:00:26->(INFO@SMTPClient): Server toegevoegd: 108.177.97.27
Fri, 11 Sep 2020 20:00:26->(INFO@SMTPClient): Server toegevoegd: 142.250.4.27
Fri, 11 Sep 2020 20:00:26->(INFO@SMTPClient): Versturen naar 1 clients ..
Fri, 11 Sep 2020 20:00:26->(INFO@SMTPClient): Connected to: 108.177.127.27:25
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:220]: mx.google.com ESMTP u2si1917672edx.5 - gsmtp
gmail.com
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): C->RESP: EHLO [domain]
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: mx.google.com at your service, [145.53.228.5]
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: SIZE 157286400
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: 8BITMIME
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: STARTTLS
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: ENHANCEDSTATUSCODES
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: PIPELINING
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: CHUNKING
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: SMTPUTF8
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): C->RESP: STARTTLS
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:220]: 2.0.0 Ready to start TLS
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): Omzetten naar TLS verbinding ...
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): Verbinding omgezet !
gmail.com
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): C->RESP: EHLO [domain]
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: mx.google.com at your service, [145.53.228.5]
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: SIZE 157286400
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: 8BITMIME
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: ENHANCEDSTATUSCODES
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: PIPELINING
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: CHUNKING
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: SMTPUTF8
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): C->RESP: MAIL FROM: [sender]
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: 2.1.0 OK u2si1917672edx.5 - gsmtp
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): C->RESP: RCPT TO: [target]
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:250]: 2.1.5 OK u2si1917672edx.5 - gsmtp
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): S->[code:354]: Go ahead u2si1917672edx.5 - gsmtp
Fri, 11 Sep 2020 20:00:26->(DEBUG@SMTPClient): C->RESP: DATA [BODY]
Fri, 11 Sep 2020 20:00:27->(DEBUG@SMTPClient): S->[code:250]: 2.0.0 OK 1599847265 u2si1917672edx.5 - gsmtp
Fri, 11 Sep 2020 20:00:27->(DEBUG@SMTPClient): S->[code:221]: 2.0.0 closing connection u2si1917672edx.5 - gsmtp
Fri, 11 Sep 2020 20:00:27->(DEBUG@SMTPClient): Closing transmission channel ...
Fri, 11 Sep 2020 20:00:27->(INFO@SMTPClient): Handled 1 emails

Een voorbeeld van een door Fannst opgesteld bericht is:

X-Mailer: FSMTP-V2
X-Fannst-NodeID: LUKERIEFF_MCLUST_A001
X-Made-By: Luke A.C.A. Rieff
Subject: SMTP Delivery failure
Date: Tue, 8 Sep 2020 14:20:37 (CEST)
MIME-Version: 1.0
Message-ID: <LO8A0Uf7mzsbS9eFKyo2FzizH8keV7LyOzpFQGj2yByo81uvI7UUxfLLep7sdrYJ@mailer.fannst.nl>
To: <webmaster@fannst.nl>
From: "Delivery Subsystem" <delivery@fannst.nl>
Content-Type: multipart/alternative; boundary="--mgHJ4i1Kmxeg5opqK0TXYgoW90ybb5EWdVePQB"
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fannst.nl; s=default; 
       h=subject:date:mime-version:message-id:to:from; 
       bh=Gx7LgY7L9MRgrw9s8WI6K4h7LGqPBK2yd4CIF82NRUk=; b=p2nWDl0JzWGrcCydTmgY8SKjs7SOjEcop0JEDe7
        PWNk4kToS75J3lABaBAjujn6f7gvjrlxjM5y6Q6Y5CZqJNJQTApQEUpADrwK56dztLDFLOy5/UuBeGTaZGqkdyrYdJ
        S3TDKVWYBMXDHuILUsIUPh6+sauq1TG+ycnzV5HpcNdsS9Dg0GQ05o+mnywC9Wrd58YWpYZrmfnSgAWHBQzuq7Y2dc
        vCb+DKnhfNiTJ5JpBqxCBnoyIOU0oYJq30gW89+H+mDiKpzQSeRnvTUq/ZDUql/gUAQC7Jr+f3ccqRpniKGbjHfrzV
        1OpIxrknoPXcV13K8tYp6LApyNyx4NAMQ==
X-Fannst-Conn: SSL
X-Fannst-Auth: spf=pass (address 193.164.131.8 is listed by fannst.nl); 
       su=pass (access granted for 193.164.131.8 , using FSMTP-V2 extensions); 
       dkim=pass(signature[0]: is valid)


----mgHJ4i1Kmxeg5opqK0TXYgoW90ybb5EWdVePQB
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable

<=21DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://ww=
w.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns=3D"http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF-8" />
<title>SMTP Delivery failure</title>
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<body>
<div class=3D"wrap">
<header class=3D"hdr">
<img src=3D"https://software.fannst.nl/fannst.nl/assets/brand/fannst-banner=
-light.png" width=3D"320px" />
</header>
<div class=3D"wrap__ctnt">
<h1>Delivery failure</h1>
<p>The FSMTP-V2 Nodes failed to deliver your message.</p>
<p>For the geeks out there, we've logged the events bellow.</p>
<hr />
<ul class=3D"errl">
 =
<li>
<p><strong>&lt;asdasdasdasdasdasdasddasdasd@gmail.com&gt;</strong>: </p>
<em>Transmission error: 550: The email account that you tried to reach does=
 not exist. Please try</em>
</li>
 =
</ul>
</div>
<footer class=3D"ftr">
<div class=3D"ftr__ctr">
<p class=3D"ftr__ctr-txt">
Sent using FSMTP-V2 by <a href=3D"https://me.fannst.nl">Luke A.C.A. Rieff</=
a>
<br />
<small>For any further inquiries, send message to: <a href=3D"mailto:lrieff=
@fannst.nl">lrieff@fannst.nl</a></small>
</p>
<hr />
<div class=3D"ftr__ctr-ref">
<ul>
<li>
<a href=3D"https://github.com/skywa04885/fsmtp-v2">Github</a>
</li>
<li>
<a href=3D"https://software.fannst.nl">Fannst Software</a>
</li>
</ul>
</div>
</div>
</footer>
</div>
</body>
</html>

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Een POP3 server gesprek:

+OK POP3 server ready LUKERIEFF_MCLUST_A001
user jan
+OK Send PASS
pass jan123
+OK Auth Success
pass
-ERR Order Error: Client already authenticated.
uidl
+OK UIDL follows
1 1595169235894
2 1595162385699
3 1595162175780
4 1595158783138
5 1595155108162
6 1595092185618
7 1595091526717
.
list
+OK LIST follows
1 1241
2 2243
3 448
4 3224
5 2239
6 2233
7 2292
.
retr 2
+OK 2243 octets
Received: by mail-pj1-f47.google.com with SMTP id t15so8629004pjq.5        for <jan@fannst.nl>; Sun, 19 Jul 2020 05:39:45 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=kEHqC/dEDwOikTvj37xshDYcWWYP4MX4/Vb/jDsTL6w=; b=uuaopL2aCVilZ/HPQVRgn28afNBtza8v4+P112qYQcgmlqBUjjlo3k4E8BktZTABI6Sm2V+4L9YAGKomdpebWVAZYQhaKBSj4LerRj+S0oo579RuP2vSz/vDSrDkPe8kIYRjd7IQjNp6B6tWKapUsuJuHBLusch8zMUE7bT9QRev2E/qMmpYBpcfDqCvNQ0hEPrcwzsgHPsMl+DNy81IbGvOi1M0tCCM8TKhT1oU2I+0T3nhSq2CA2qJg/2O/5yt9dwJQ/eEeZWiOu0UZHM7qPIfiAFPu1pnKiy+pUYYjEStBhhds8uB9kQLKbvtTDmdli1fx3yOHa6oQiRHzStaXw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=kEHqC/dEDwOikTvj37xshDYcWWYP4MX4/Vb/jDsTL6w=; b=t2GXDGDIl+SHZW6U/35LiiBUk2DXPQEmEZlp8PcSnzGOt4H30atCn4H3QI+D26JAOLzr2JYSuWt3m/iw7vE8GkxENwtsaqH4fs/uWcTw0c2bFdie67+WCRIfbC4Q8eI2JVraUv+hZ91XtDi1eXckUHr/iLhpiDUP1fg9MOnjww6WN7ih/slpvcgjbhlrnyGneCbmJAvp25rxATnwJYaQm+dwC/CINHU+ZFVq0mSVyjyyXr2/2Ajt4rr7IA77ornPxlYpWrHLsso+A         fmrTTunUKNBPoqwKEnbxu53ild8RZOYdcrkw+Mfg5TvqSXzpiZVADzq12noDizEOci5aCvgg==
X-Gm-Message-State: AOAM533g7kX5+qrRzEQxsduBUZyJvYF6ZCw0nYgmv4FOtW50aSU7h7/W	+HembzZO+pG8ecLZiR5Tyc+vcdbMrq56pRK95SmSAFvP
X-Google-Smtp-Source: ABdhPJz6n82rs1QnhtgLxrql1k/j2qZ0AjDav6MTAd3kiZl45VkGzRl44MJKSV8lWPfjf9d3Mf2bs9yzdC2nQ6i5h1c=
X-Received: by 2002:a17:90a:ff92:: with SMTP id hf18mr18670796pjb.10.1595162383461; Sun, 19 Jul 2020 05:39:43 -0700 (PDT)
MIME-Version: 1.0
From: Skywalker <luke.rieff@gmail.com>
Date: Sun, 19 Jul 2020 14:39:31 +0200
Message-ID: <CAFoEhQPaEv60jy+Rzms=Z4wnrEM_9tUSvUz9bPr-_QfFYL3Gig@mail.gmail.com>
Subject: Hoi
To: jan@fannst.nl
Content-Type: multipart/alternative; boundary="00000000000039b14705aacaafb3"

--00000000000039b14705aacaafb3
Content-Type: text/plain; charset="UTF-8"

Shhzshhs

--00000000000039b14705aacaafb3
Content-Type: text/html; charset="UTF-8"

<div dir="auto">Shhzshhs</div>

--00000000000039b14705aacaafb3--
.
quit
+OK POP3 server signing off LUKERIEFF_MCLUST_A001

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