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ref-go-smtprelay
镜像自地址 https://github.com/decke/smtprelay.git
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Simple Golang SMTP relay/proxy server

Topics
#golang #proxy-server #smtp-server #smtp-relay #ssl #load-balancer

目录树: 7fa0eebf95
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ref-go-smtprela...
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Jonathon Reinhart 7fa0eebf95 Simplify range code for setting up listeners 4 年之前
.github 9040a456cf Create codeql-analysis.yml 5 年之前
cmd 076fd65dea Use default cost for bcrypt 5 年之前
scripts b42ad6ddc9 Add release script as requested in #2 5 年之前
LICENSE c707438ae8 Update MIT license template 6 年之前
README.md 2afbe67407 Add Go Report Card badge 5 年之前
auth.go 0e8986ca79 Expand allowedUsers email field to support comma-separated and domains (#9) 4 年之前
auth_test.go 0e8986ca79 Expand allowedUsers email field to support comma-separated and domains (#9) 4 年之前
config.go 999cfea307 Fix typo "addresses" 5 年之前
go.mod 4e0bf0908d Update dependencies 5 年之前
go.sum 4e0bf0908d Update dependencies 5 年之前
main.go 7fa0eebf95 Simplify range code for setting up listeners 4 年之前
main_test.go 0e8986ca79 Expand allowedUsers email field to support comma-separated and domains (#9) 4 年之前
smtp.go 999ccab778 Fix spelling 5 年之前
smtprelay.ini 0e8986ca79 Expand allowedUsers email field to support comma-separated and domains (#9) 4 年之前

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