Connection Encryption Type Error

@barbardell said:

Unfortunately, I don’t have any choice but to use Port 25.

Is it that non-profit who has email servers that require port 25?   Normally port 25 is blocked in the att gateways.  After the account changes did you verify port 25 is still open?

 

Yes, it is for the non-profit as it is a “3rd party email”. I finally got to someone who knew about Port 25 and opened it but that only worked for a few minutes. That only helped for a few minutes and then the problem reoccurred. Later they also did a factory reset and then disabled/re-enabled Port 25. That lasted about an hour. Yesterday, I went to Starbucks (Google Internet) and was able to send/receive fine. Then I went to McDonalds (ATT Internet) and was also able to send/receive fine. So it’s definitely something in the way they set up our network. Later in the afternoon, things started working at home. I have no idea why or what they did. I suspect it was something in backend settings, which is what it was when they originally set us up a year ago. Since no one at AT&T tech support has called me back (as they promised) I have no clue what the solution was. I am going to follow up so I can document it in case there are future issues. You need to keep on them. They kept trying to blow me off saying “we don’t support 3rd party emails”. This was not a 3rd party email issue per se. It was a backend network setting that was impacting my 3rd party email. But if I had not been persistent (about 8 hours of invested time), I would still have the problem.

had the same exact problem as everybody else here

DISABLED AVAST MAIL SHIELD: PROBLEM SOLVED

(ATT list for now)

Here is a copy of my reply from Jan 2019. FYI, the problem reoccurred after this and I ended up talking to someone from the President’s office. (I have a friend who is a VP and she gave me the information.) They never really figured out what the problem was but kept resetting the system and it finally stuck.


Re: Connection Encryption Type Error
This is a bit old, but I have some information that might help. I initially had this problem a year ago when I first got AT&T Internet. After several technician visits, swapping hardware, etc. the technician discovered that some back end set up was not completed.

Yesterday, I "upgraded" our service from 50 mb to 100 mb. Suddenly, my Office 365 email wouldn't send or receive via Outlook 2013. It took about 7 hours to troubleshoot the problem and AT&T Customer (no) Service was HORRIBLE! They kept saying they didn't support 3rd party emails. But it was a problem that was caused when they "upgraded" my service. After about 6 hours of troubleshooting I finally got to a technician at AT&T Connect (paid support) even though I don't have a paid subscription. He immediately knew what the problem was. When they implemented the change, they didn't open Port 25 which allows 3rd party emails access. He said it should have been open by default. Well, that cleared the log jam. But then it got stuck again. So I was back on the phone this morning. This time, they wouldn't let me talk to AT&T Connect without a paid subscription. So I had to go back through Tier 1 and then Tier 2 and then waited about 1/2 hour to speak to a supervisor who finally took my issue seriously. She did a factory reset of the system and disabled then re-enabled Port 25. Problem solved. But I have invested about 7 1/2 hours and, were it not for my persistence in requesting a supervisor I'd still be trying to figure this out.

Tiers 1 and 2 are not trained properly although the supervisor said the factory reset and Port 25 reset are in their troubleshooting steps. It appears they just wanted to get rid of me. And there is no way to easily escalate issues without LONG wait times. I doubt Management is aware of how terrible the situation is but they don't make it easy to let them know.

I hope this information is helpful to someone and that someone from AT&T Customer Service leadership might get in touch with me to apologize and make some commitments for preventing this kind of problem in the future.

We're here to help @handymanmac, with receiving emails.

 

Are you using a email client, If so are you using a secure mail key?

 

Also when you check your emails at http://sm.att.com/e05b5109 are you seeing the
received emails?

 

Please check that your email server settings are correct. Looking forward to your reply.

 

Charles, AT&T Community Specialist