No i meant it differently. 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@ex

No i meant it differently. 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.