Need Port 25 unblocked.
Had the same problem a year ago, all of a sudden port 25 got blocked and I couldn't sent outgoing mail via the U-verse connection. Modem/router NVG510 is set to pass SMTP Port 25, so the problem is not there, just as it wasn't a year ago. A year ago a lower tier tech support agent resolved it on their end. Now they keep passing me through tiers, up to paid support. Why paid support when the problem very obviously is not on my end?
Getting fed up with this, spent 2:30 hours last night talking to 4 agents, who passed me from one to another, still no resolution. I'm just about to terminate my AT&T account. I need to use Port 25 for SMTP, my domains' hosting service uses that in their mail servers, where my email is hosted. Anyone have a similar experience and maybe resolution?