drew/smtprelay
1
0
Fork 1
mirror of https://github.com/decke/smtprelay.git synced 2025-12-25 07:43:06 -07:00
Code Issues Packages Projects Releases Wiki Activity

Update README

Browse Source
This commit is contained in:
Bernhard Froehlich
2018-12-21 10:16:26 +00:00
parent a0e357c0de
commit e01895f25a
1 changed files with 24 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
README.md
View File

@@ -1,10 +1,30 @@
# smtp-proxy
Simple Go SMTP relay/proxy server that accepts mails via SMTP
and forwards directly to another SMTP server.
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
* STARTTLS/TLS support
* Supports incoming 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
* Supports outgoing STARTTLS (587) and unencrypted SMTP (25)
* Forwards all mail to a smarthost (GMail, MailGun or any other SMTP server)
* Small codebase (smtp-proxy ~250 LoC, chrj/smtpd ~1200 LoC)
* IPv6 support
* Forward to GMail, MailGun or any other SMTP server