11-30-2015 4:29 PM
From: AT&T Powered by Yahoo! [mailto:email@example.com]
Sent: 28 November, 2015 1:53 PM
Subject: Important: Verification Required - Action Needed
Dear AT&T Internet Services Member,
We have received questions regarding the following error message which is received by customers when they send e-mail using a non-verified e-mail address:
“Unable to send the message. Please verify the e-mail address in your account properties. The server responded: 553 From: address not verified.”
If you have received this error message, you will continue to receive it for emails sent with a non-verified address until you verify your Yahoo! email address or any other non AT&T email addresses (e.g., firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, etc.). Verification instructions are available on the AT&T Help site https://www.att.com/esupport/article.jsp?sid=KB412255. If you have already verified your non AT&T email address and are no longer receiving the 553 error message, please disregard this email.
Thank you for your attention to this matter as we work to improve your Internet service. Our goal continues to be to make you a very satisfied customer. If you are experiencing any issues and would like to speak to a customer support representative, please contact us at 1-877-722-3755.
Sincerely, AT&T Internet Services
Yahoo! is a registered trademark of Yahoo! Inc. © 2008 AT&T Intellectual Property. All Rights Reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property. Please do not reply to this message via e-mail. This address is automated, unattended, and cannot help with questions or requests.
Apparently this (bogus?) email error message has been around for years and nobody yet seems to know why it's generated and how to get rid of it. I just got off the phone with a U-verse "problem resolution specialist" who told me it was non-AT&T "spam" from "somewhere" and to just ignore it. That's easier said than done since it comes in multiple times a day and tends to run a person crazy. I've combed the archives and fiddled-around with settings in both the AT&T Webmail account and on Outlook 2016 and they all are configured to the exact recommended settings. There's no obvious way to "verify" anything that I've found so far. Also, when you click the https://www.att.com/esupport/article.jsp?sid=KB412255 link it just goes to a dead page with the most unhelpful message possible, that being:
Page Not Found The article you're looking for doesn't live here anymore.
We work to keep our site updated with the most current information,
so sometimes we have to retire an article.
I've seen references to this dating back to the early 2000s so surely somebody, somewhere (preferably AT&T since it's their deal) has come up with a solution to fix this huge spam problem once & for all. Thanks and standing by for a truly Final Solution...
Solved by: Go to Solution.
11-30-2015 4:41 PM
What this is for is when someone deposits e-mail on an AT&T relay server "From" a non-AT&T domain. The idea is to prevent SPAMmers from depositing e-mail without a valid from address to be delivered via the AT&T relay servers.
Supposedly, if you follow the procedure, they register your non-AT&T address as being a valid From address for sending on the AT&T relay server and you should quit getting 553 when trying to send e-mail using that address as a From address.
Unfortunately, AT&T redid their entire Support website and did away with KB numbers replacing them with KM numbers with apparently no way to crossreference the two (I do not know whose bright idea that was, but I hope they get a seat in the corner at the company Christmas Party.).
I'd suggest that you send a Private Message to @ATTU-verseCare and see if they can help you.
11-30-2015 7:35 PM
Thanks JefferMC, but I still have a couple of questions, if I may:
1. Do you happen to know of any relevant "KM" articles pertaining to my problem? I've searched high & low with all sorts of keywords and related search criteria for several days now and have yet to come up with a suitable solution.
2. The crazy thing about this is that the email address in question here is a '@att.com' address that has been working just fine for years now, until this issue just recently came up; it's not a 2nd party domain deal at all. Accordingly, if I PM the guys you mentioned at "ATTU-verseCare" is it truly "private", in the sense that I can list the actual email address I'm having a problem with, without it being publicly disclosed? I guess the only danger would be some spammer getting ahold of it but I still don't want to put it out there in the wild as easy pickins for any scammer who happened to be reading the boards.
Please advise if you would be so kind...
11-30-2015 8:37 PM
1) No, I searched myself.
2) Yes, Private Messages are private. One time I posted the contents of a PM to me in a reply and got my message taken down and a scolding.
12-01-2015 7:45 AM
Hey @Travis_Lloyd, we have received your private message and look forward to working with you to get this corrected. Keep an eye on the at the top right corner of your screen for a response from us. In the meantime, let us know if you have any other questions or concerns!
12-01-2015 8:38 AM
12-08-2015 12:34 AM
It took a lot of research to get here but it worked like a charm! I just hope all the other poor souls out there who've had this same problem for months, if not years, can find their way to this destination as well. Thanks for all your help!
10-08-2016 8:49 AM
It doesn't work! There is no "Add send-only" button. There are NO add buttons anywhere to add new addresses and I need real help. I'm very frustrated.
06-14-2017 4:25 PM
I have been working with the PAID 360 ATT support team all day. Nobody there seems to know how SMTP authentication works nor why I get the Outlook 553 Error. I'm glad to see I'm not alone having the problem, but the solution above links to a solution for a different problem. I guess in switching from KB to another system some solutions got lost. HELP. I can't image the 533 verify external email is this uncommon of a problem. With my Verizon ISP, they have a webpage for entering authorized external addresses to verify. What happened AT&T? Don't you have business customers using their company email addresses?
06-21-2017 2:28 PM
I don't believe http://www.att.com/esupport/article.html#!/email-support/KM1010559 answers the poster's question. If it doesn't, consider -
Adding a new POP addy using outbound.att.net in Thunderbird recently, the verify issue raised its ugly head again. I searched for 2 grueling days and finally stumbled on the solution. Once having the solution, I also had the right words ("Add send-only address") to search for at Yahoo mail. The instructions are at https://help.yahoo.com/kb/mail-for-desktop/sln26524.html -
Add a send-only address
1. Mouse over the Settings menu icon | select Settings.
2. Click Writing email.
3. Enter your full email address in the "Add send-only address" field.
4. Click Verify to send a verification email to the address you entered above.
5. Open the email and follow the instructions to verify the address.
09-06-2017 4:58 PM
This was the solution in #10! I had the same problem but couldn't find this page and no one at AT&T understood the problem, either. I spent 4.5 hours on the phone with them over the course of 3 days. Thanks!!!