Hi we have a Business Fiber 300 internet account and I seem to be blocked on port 25 as I am trying to setup an in house email server.  Can someone help me open this port up for sending emails? Thanks

Good morning!  We found out last Thursday we were being blacklisted by AT&T. We have since then corrected our rDNS record and confirmed we had been removed from all of the large blacklist companies shortly after. We submitted a request the next day to AT&T to be removed from their blacklist, but we

Hello. I have a home office and I run MS Exchange 2010 for home/business emails. (4 users) I just recently changed my Internet access to AT&T Uverse.My server is receiving Inbound emails perfectly. OUTBOUND emails are not going out.(stuck in MS Exchange queue) I have been using this server for 16 ye

I have some posts suggesting that I pay for some extended support to get port 25 unblocked; that is ludicrous, I already pay for static netblock, I will not pay extra to use my static netblock the it *should work anyways*. How do I get port 25 opened up? Thanks.

To whom it may concern: I have just installed a mail server and the mail server will receive emails but it seems like it can't send out emails through the smtp ATT server. I checked out and it looks like Port 25 for emails have been blocked by ATT. I have investigated in the ATT community and was to