I set up a Postfix server on my Ubuntu VPS and it works for sending email from the
When I try to set up my server (borogov.es) with my mail client, and I use "mail.borogov.es" as my outgoing mail server, I get "Server not responding." I feel like this is an access issue of some sort, but I'm not sure.
I'm not running a firewall. What could be going on?