SNM Version 2.3.0

Release for Nixos 19.09

New Features

Removes TSLv1.0 and other deprecated ciphers to avoid downgrade attacks [1]
Adds the dkimKeyBits option to manually specify how many bits your DKIM key is
supposed to be. Notice that this option will not override your existing DKIM
key. It only affects people without a DKIM key yet. The default is reasonable
(1024 bit). [2]
Add subaddresses to Postfix. You can now send emails to your address with
tags, i.e. username+tag@domain.com and it will be delivered to
username@domain.com. [3]
SNM by default now uses extended spam headers which allow you to use them in
your sieve logic (and others). [4]
Postfix now automatically restarts if passwords change [5]