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1 Message

Tue, Dec 11, 2018 3:08 AM

Uverse is blocking my outbound SMTP email on port 587

I have my own exchange server using Exchange 2016.  I have configure it to use port 995 for inbound and 587 for outbound using TLS.   I am now having issue sending email but have no problem receiving.  I had check and double check my settings, check my Firewalls and including using Telnet which show that I am being blocked.    Anyone having this issue and what was the resolution?   Thanks in advance for any help.


Accepted Solution

Official Solution

Brand User



111.5K Messages

a year ago

Hi @cyberjohn56


Thanks for reaching out! For help getting unblocked from sending emails, we suggest reaching out to our Postmaster. Let us know if you still need assistance!


Aminah, AT&T Community Specialist

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