chylex/SMTP-Relay
1
0
Fork 0
mirror of https://github.com/chylex/SMTP-Relay.git synced 2025-04-09 17:15:49 +02:00
Code
Simple multi-account SMTP relay.
100 Commits 2 Branches 0 Tags 364 KiB
Go 99.1%
Dockerfile 0.9%
822dbbce7d
Go to file
Bernhard Froehlich 822dbbce7d
Bump Go to 1.15 for CI builds
2021-02-17 19:31:36 +00:00
.github Bump Go to 1.15 for CI builds 2021-02-17 19:31:36 +00:00
cmd hasher: Check number of arguments 2021-02-15 00:18:15 -05:00
auth_test.go gofmt: Fix formatting 2021-02-16 15:57:50 +00:00
auth.go gofmt: Fix formatting 2021-02-16 15:57:50 +00:00
config.go Add new Release Workflow using Github Actions and wangyoucao577/go-release-action 2021-02-17 12:49:24 +00:00
go.mod Update go dependencies 2021-02-16 15:33:12 +00:00
go.sum Update go dependencies 2021-02-16 15:33:12 +00:00
LICENSE Update MIT license template 2018-12-08 21:16:10 +00:00
main_test.go gofmt: Fix formatting 2021-02-16 15:57:50 +00:00
main.go Add new Release Workflow using Github Actions and wangyoucao577/go-release-action 2021-02-17 12:49:24 +00:00
README.md Add Go Report Card badge 2020-05-11 13:56:24 +00:00
smtp.go Fix spelling 2020-05-16 10:44:04 +00:00
smtprelay.ini Expand allowedUsers email field to support comma-separated and domains () 2021-02-14 22:16:18 +01:00

README.md

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 to GMail without giving away my GMail credentials to each device which produces mail.

Main features

  • 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 (GMail, MailGun or any other SMTP server)
  • Small codebase
  • IPv6 support