Cannot connect to email servers (send or receive) when VPN is on
I've recently started using Freedome and have twice encountered periods of time in which I can't connect to my email servers. I'm OSX Sierra (Mac Pro) and run the Postbox mail client (Apple mail simply ran out of gas). I do not use email provided by my ISP, but instead use Fastmail (mail.messagingengine.com).
I use a secure connection over port 993 and have double, triple and quadruple-checked any firewall and other security settings. My service is pretty fast. Even with Freedome on, I get typically 80-90mb speeds. So I don't think there's any sort of timeout.
This has happened twice in the last week, for periods of about two hours. When Postbox tries to refresh mail, I see a message that it can't connect. During this time, I can try a direct telnet connection and it fails as well. So the problem isn't the mail client. If I turn off Freedome, mail works fine. Turn Freedome back on and it fails. After a couple of hours, mail will work with Freedome on. BTW, it doesn't matter if I reboot or not.
I've been working with Fastmail on this all week. I really don't think it's their servers, since everything works fine when Freedome is off. So I really think the finger is pointing at Freedome.