This looks cool, but do you have any plans to support reverse aliases like simplelogin does? So users can reply from their emails even if an email is aliased, without having to add forward email SMTP settings.
I have an alias user@example.com which forwards to user@gmail.com
The idea is when user@gmail.com gets an email through the user@example.com alias, they can also reply to it and it will show up as user@example.com.
Simplelogin does this through a reverse alias, the reply to address is not the actual address, rather it's an alias for the reply-to address, so it can rewrite the message as if it came from the alias.