1
0
mirror of https://github.com/chylex/SMTP-Relay.git synced 2024-07-24 21:28:48 +02:00
Simple multi-account SMTP relay.
Go to file
2023-07-08 18:48:34 +02:00
.github Fix Release workflow 2023-06-16 06:54:15 +00:00
cmd/smtprelay Reorganize source code directories 2023-07-05 11:03:12 +02:00
internal Add option to override From header for individual accounts 2023-07-08 18:48:34 +02:00
tools Reorganize source code directories 2023-07-05 11:03:12 +02:00
.gitignore Add .idea folder to .gitignore 2023-07-04 23:21:12 +02:00
Dockerfile Reorganize source code directories 2023-07-05 11:03:12 +02:00
go.mod Change account config file to use YAML instead of JSON 2023-07-08 14:02:57 +02:00
go.sum Change account config file to use YAML instead of JSON 2023-07-08 14:02:57 +02:00
LICENSE Update MIT license template 2018-12-08 21:16:10 +00:00
README.md Make INI file the only way to read configuration 2023-07-06 12:56:30 +02:00
smtprelay.ini Update example config INI 2023-07-08 14:23:34 +02:00

smtprelay

Go Report Card

Simple Golang based SMTP relay/proxy server that accepts mail via SMTP and forwards it directly to another SMTP server.

Why another SMTP server?

Outgoing mails are usually send via SMTP to an MTA (Mail Transfer Agent) which is one of Postfix, Exim, Sendmail or OpenSMTPD on UNIX/Linux in most cases. You really don't want to setup and maintain any of those full blown kitchensinks yourself because they are complex, fragile and hard to configure.

My use case is simple. I need to send automatically generated mails from cron via msmtp/sSMTP/dma, mails from various services and network printers via a remote SMTP server without giving away my mail credentials to each device which produces mail.

Main features

  • Simple configuration with ini file
  • Supports SMTPS/TLS (465), STARTTLS (587) and unencrypted SMTP (25)
  • Checks for sender, receiver, client IP
  • Authentication support with file (LOGIN, PLAIN)
  • Enforce encryption for authentication
  • Forwards all mail to a smarthost (any SMTP server)
  • Small codebase
  • IPv6 support