Is there a way to route mail to another port? I have an email account attached to my laptop that I'd like to be able to send and receive mail from. Due to mobility, I'll be passing through various networks that will probably block this port.
My dynamic DNS provider allows me to utilize web-forwards for MX domains; is this possible? where I can web forward to a domain:port which is managed by my DNS provider when I traverse between networks. If not, is there a way?
Of course i could use web-mail or relay-forwarding from my home server, but that's not geeky enough.
Unfortunately, what you are asking for is not possible. You can't ask other mail servers to contact you on a different port.
Generally, it is a bad idea to run a mail server on random networks. It's inherently unreliable, and likely to land your domain on a bad reputation list. If you want to run a mail server, get a server at a reliable provider and set up your MX there. You can configure your laptop to forward its mail through that server.