https://github.com/gene-hightower/ghsmtp

Gene's SMTP server — receive Internet mail with less fuss
https://github.com/gene-hightower/ghsmtp

c-plus-plus chunking cpp cpp17 dkim dmarc rfc-5321 smtp smtp-client smtp-protocol smtp-server smtpd spf tls-support utf-8 utf8

Last synced: about 1 month ago
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Gene's SMTP server — receive Internet mail with less fuss

• Host: GitHub
• URL: https://github.com/gene-hightower/ghsmtp
• Owner: gene-hightower
• License: other
• Created: 2014-02-05T19:47:22.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2024-05-22T17:05:45.000Z (7 months ago)
• Last Synced: 2024-05-22T18:27:29.492Z (7 months ago)
• Topics: c-plus-plus, chunking, cpp, cpp17, dkim, dmarc, rfc-5321, smtp, smtp-client, smtp-protocol, smtp-server, smtpd, spf, tls-support, utf-8, utf8
• Language: C++
• Size: 2.04 MB
• Stars: 7
• Watchers: 5
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • License: COPYING

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README

        
Gene Hightower's SMTP server.

A program to receive Internet (RFC 5321) mail.  This is a “personal

domain” type program that delivers mail for all addresses to a single

user's ~/Maildir.

Free software — AGPLv3 with OpenSSL exception.

Written using Standard C++ — plus PEGTL, (at one time Ragel, before

that Bison), OpenSSL, boost-iostreams, ldns, spf2, regdom, TinyCDB,

glog etc.  Compiles with recent GCC and Clang.

sudo dnf install \

  boost-devel \

  file-devel \

  fmt-devel \

  glog-devel \

  ldns-devel \

  libasan \

  libidn2-devel \

  libopenarc-devel \

  libopendkim-devel \

  libopendmarc-devel \

  libpsl-devel \

  libspf2-devel \

  libubsan \

  libunistring-devel \

  openssl-devel \

  tinycdb-devel

sudo apt-get install \

  libboost-all-dev   \

  libcdb-dev         \

  libfmt-dev         \

  libgoogle-glog-dev \

  libidn2-dev        \

  libldns-dev        \

  libmagic-dev       \

  libopendkim-dev    \

  libopendmarc-dev   \

  libpsl-dev         \

  libspf2-dev        \

  libunistring-dev   \

  pkg-config

Run it from (x)inetd or daemontools as a non-root user.  It will

accept mail and store it in that user's ~/Maildir.

I run it on the Fedora distribution of GNU/Linux/systemd — might also

work on other platforms.

Support for some useful SMTP extensions:

RFC 1870: Message Size Declaration

RFC 2920: Command Pipelining

RFC 3030: Transmission of Large and Binary MIME Messages

RFC 3207: Secure SMTP over Transport Layer Security

RFC 3463: Enhanced Mail System Status Codes

RFC 6152: 8-bit MIME Transport

RFC 6531: Internationalized Email

The software works with IPv4 and IPv6, mostly.

I wrote this to experiment with and learn about Internet mail.  I do

use it as my every day SMTP server for a number of domains.