When you run a lot of side projects and manage more than several domains, all you want is just combine all those emails address to your main inbox.
With this self-hosting app, you can do more than "forward all".
@hiyukoim You can mark your mailbox as a catch-all, which might work for you?
@hiyukoim hmm. the "how it works" makes it sounds like this app would need to be reachable on port 25, which would conflict with Cloudrons Mailserver.
In the Cloudron case you would need to add the domain create an alias and if you stil want to receive it somewhere else create forward in Roundcube/Sieve.
@fbartels Yes, At the moment I use Roundcube to forward (Redirect) email.
@murgero Catch-all is for any address for the same domain. So at the moment, I use Roundcube for setting up flexible forwarding.