MxRemind

MxRemind is a service for setting and receiving reminders via e-mail.

MxRemind queries a mailbox using IMAP to fetch e-mails that set new reminders. Any e-mail in the mailbox that matches the reminder format will set a reminder for the sender.

Installation

Requirements

• golang 1.19+

go install github.com/jbchouinard/mxremind@latest

Or use docker-compose:

version: '3'

services:
  db:
    image: postgres:15-alpine
    restart: always
    environment:
      - POSTGRES_USER=mxremind
      - POSTGRES_PASSWORD=mxremind
      - POSTGRES_DB=mxremind
    volumes:
      - pgdata:/var/lib/postgresql/data 
    healthcheck:
      test: [ "CMD", "pg_isready", "-q", "-d", "mxremind", "-U", "mxremind" ]
      timeout: 30s
      interval: 10s
      retries: 10

  mxremind:
    build: https://github.com/jbchouinard/mxremind.git
    depends_on:
      db:
        condition: service_healthy
    environment:
      - MXREMIND_TIMEZONE=America/New York
      - MXREMIND_DATABASE_URL=postgresql://mxremind:mxremind@db/mxremind
      - MXREMIND_MAILBOX_IN=INBOX
      - MXREMIND_MAILBOX_PROCESSED=
      - MXREMIND_SMTP_ADDRESS=myname@example.com
      - MXREMIND_SMTP_PASSWORD=mypass
      - MXREMIND_SMTP_HOST=smtp.example.com
      - MXREMIND_SMTP_PORT=587
      - MXREMIND_IMAP_ADDRESS=myname@example.com
      - MXREMIND_IMAP_PASSWORD=mypass
      - MXREMIND_IMAP_HOST=imap.example.com
      - MXREMIND_IMAP_PORT=993

volumes:
  pgdata: {}

Configuration

MxRemind requires a Postgresql database.

By default, MxRemind looks for the configuration file mxremind.yaml in the current directory. A different configuration file can be specified with the --config flag.

Alternatively, options can be provided by environment variables, or CLI flags.

CLI flags have highest precedence, followed by environment variables, and finally configuration file.

Environment Variable	Example	Details
MXREMIND_TIMEZONE	America/Montreal	Default timezone for reminders.
MXREMIND_FETCH_INTERVAL	60	Interval in seconds to fetch emails.
MXREMIND_SEND_INTERVAL	60	Interval in seconds to send emails.
MXREMIND_DATABASE_URL	postgresql://user:pass@host:5432/db	Database connection string.
MXREMIND_MAILBOX_IN	INBOX	Mailbox to fetch from.
MXREMIND_MAILBOX_PROCESSED	Trash	Mailbox to move processed emails.
MXREMIND_SMTP_ADDRESS	myname@example.com	SMTP server username.
MXREMIND_SMTP_PASSWORD	mypassword123!	SMTP server password.
MXREMIND_SMTP_HOST	smtp.example.com	SMTP server host.
MXREMIND_SMTP_PORT	587	SMTP server port.
MXREMIND_IMAP_ADDRESS	myname@example.com	IMAP server username.
MXREMIND_IMAP_PASSWORD	mypassword123!	IMAP server password.
MXREMIND_IMAP_HOST	imap.example.com	IMAP server host.
MXREMIND_IMAP_PORT	993	IMAP server port.

Usage

Copy mxremind.example.yaml to mxremind.yaml and edit it.

Start the server:

mxremind run

A new reminder is set by sending an e-mail to the configured mailbox with a subject matching one of these formats:

Format	Example
HH:MM message	15:04 do the thing
tomorrow HH:MM message	tomorrow 15:04 do the thing
MM/DD HH:MM message	12/04 08:00 do the thing
YYYY-MM-DD HH:MM message	2023-04-05 12:00 do the thing

A reminder e-mail will be sent back to the sender with the message as subject at the specified time.

Tests

This repo contains integrations tests that use tush. Add bin/ and test/integration/scripts to PATH, then run:

docker-compose -f test/integration/docker-compose-yaml up -d
make test

License

Copyright 2022 Jerome Boisvert-Chouinard

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.