cyrus-sasl-xoauth2 VS docker-mailserver

no you need to install both cyrus-sasl and some form or another of xoauth, such as https://github.com/moriyoshi/cyrus-sasl-xoauth2. If you're on a mac you should look at this issue: https://github.com/moriyoshi/cyrus-sasl-xoauth2/issues/9

final: prev: with prev.lib; { cyrus_sasl_xoauth2 = prev.stdenv.mkDerivation rec { name = "cyrus-sasl-xoauth2"; src = prev.fetchFromGitHub { owner = "moriyoshi"; repo = "cyrus-sasl-xoauth2"; rev = "36aabca54fd65c8fa7a707cb4936751599967904"; sha256 = "OlmHuME9idC0fWMzT4kY+YQ43GGch53snDq3w5v/cgk="; }; outputs = [ "out" ]; depsBuildBuild = with final; [ buildPackages.stdenv.cc cyrus_sasl ]; nativeBuildInputs = with final; [ autoreconfHook ] ++ optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames; buildInputs = with final; [ openssl db gettext libkrb5 ] ++ optional stdenv.isLinux pam; configureFlags = [ "--with-openssl=${final.openssl.dev}" "--with-cyrus-sasl=${placeholder "out"}" "--with-plugindir=${placeholder "out"}/lib/sasl2" "--with-saslauthd=/run/saslauthd" "--enable-login" "--enable-shared" ]; installFlags = optional prev.stdenv.isDarwin [ "framedir=$(out)/Library/Frameworks/SASL2.framework" ]; # Make autoreconfHook happy postPatch = '' touch NEWS AUTHORS ChangeLog ''; meta = with prev.lib; { description = "Cyrus SASL XOAUTH2 plugin"; homepage = "https://github.com/moriyoshi/cyrus-sasl-xoauth2"; license = licenses.mit; platforms = platforms.all; }; }; }

Unfortunate things 2: it seems that even once you have cyrus-sasl installed, there might not be a standard, widely-distributed XOAUTH2 plugin. The one I found referenced the most often and ended up installing myself was here. It took me a lot of fiddling with the configure.ac file to get it to install the plugin to /usr/local/lib instead of /usr/lib, because, again, Apple does not want me to do things the default Linux way, because of reasons.

I can recommend Docker mailserver (it also works with Podman). It is already pretty lightweight but you can even make it lighter and it has an active community as well as regular updates.

https://github.com/docker-mailserver/docker-mailserver https://docker-mailserver.github.io/docker-mailserver/latest/ https://www.programonaut.com/how-to-host-a-mail-server-with-docker-for-free-step-by-step/

Use https://github.com/docker-mailserver/docker-mailserver or mailcow . They both provide reasonable default setup for spam detection and even UI for adjusting settings.

" this docker based mail server looks pretty legit https://github.com/docker-mailserver/docker-mailserver "

Check https://github.com/docker-mailserver/docker-mailserver It has almost everything in a single docker image. Email is not the easiest to implement with container(s), but that project has managed it.

I set up docker-mailserver[0] Monday in ~6 hours, most of which were me trying to be fancy using podman instead of docker and dealing with SELinux. But then again I did choose it over mail-in-a-box for just that level of customization. Obviously I can't tell how reliable it will be in the long run yet, but since it's using the classic Postfix/Dovecot stack I expect it'll be pretty stable

[0] https://github.com/docker-mailserver/docker-mailserver