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Mail server inbound.att.internet responded: Server error - Please effort again afterwards.

For a month now one of my five e-mail addresses, which formerly worked but dandy, returns this message, upon opening Thunderbird: "Sending of password for user (my e-mail accost)@att.net did non succeed. Postal service server inbound.att.cyberspace responded: Server fault - Delight try again later." I've checked both Tools/account settings, and Tools/options, and too checked my (hidden) passwords for all 5 accounts. I can't find anything DIFFERENT on the i that doesn't work. When I try SENDING a message from this aforementioned problematic email business relationship, I get this message: "An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please verify that your electronic mail address is correct in your account settings and endeavour again." I've tried running in SAFE mode, but that does non solve the trouble.

Hmmmm. . .                  

For a month now one of my v email addresses, which formerly worked just dandy, returns this message, upon opening Thunderbird: "Sending of password for user (my email address)@att.internet did non succeed. Postal service server inbound.att.net responded: Server error - Please try again later." I've checked both Tools/account settings, and Tools/options, and as well checked my (hidden) passwords for all v accounts. I can't find anything DIFFERENT on the one that doesn't work. When I endeavour SENDING a bulletin from this same problematic email account, I get this message: "An error occurred while sending mail. The postal service server responded: Request failed; Mailbox unavailable. Please verify that your email address is correct in your business relationship settings and attempt over again." I've tried running in Safety mode, only that does non solve the problem. Hmmmm. . .

Solution eye eponami

I think the settings for all your accounts are becoming increasingly complex, with all the conflicting advice, that I'd suggest you create a new profile, and add ane account with the AT&T recommended settings, and utilize a secure mail key in place of the regular business relationship password. Confirm that the account can send and receive, and so add another account in one case the first one is working. Give each business relationship a singled-out Account Name, and each smtp a distinct Clarification. Have each account send through an smtp server which has the same User Name and password (mail service primal) as the incoming business relationship. (Select the business relationship in the left pane of Account Settings, set the smtp in Outgoing Server (SMTP) in the right pane).

Once you have ii accounts working properly, add the rest in the same way. Later, y'all tin always transfer data such as Local Folders, address books etc. from the old contour to the new one. Help/Troubleshooting Data, nigh:profiles to create and launch multiple profiles.

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All Replies (xviii)

Info at link mentions: Avoid email hiccups A security upgrade is coming to AT&T email, so if y'all accept certain email programs or apps, you'll have to update your settings. Learn more about the security upgrade.

If your program or app is affected, be sure to create a secure mail service key. You'll demand it to fix upward to go on getting your AT&T email with a desktop programme or mobile app.

https://www.att.com/support/article/e-mail-support/KM1010523

Info at link mentions: Avoid electronic mail hiccups A security upgrade is coming to AT&T electronic mail, so if yous have certain email programs or apps, y'all'll have to update your settings. Learn more than near the security upgrade. If your program or app is affected, be sure to create a secure mail central. You'll need it to fix up to keep getting your AT&T email with a desktop program or mobile app. https://www.att.com/support/article/email-support/KM1010523

Thanks, Toad (I'm hoping we are on a first-name basis : ), for your advice, but I'm nevertheless puzzled by just one thing:

If I demand to update my settings, to get the problem address to piece of work but have non done and then yet, why do 4 of my email addresses work fine, but just one returns that fault message every time I open TB? I enquire this because I cannot find whatsoever difference in settings between the working addresses and the failing-to-work address. Hmmmm, Bruce

Cheers, Toad (I'm hoping nosotros are on a first-name basis : ), for your advice, but I'm still puzzled past just one thing: If I need to update my settings, to go the trouble address to work but accept not done so yet, why practice four of my email addresses work fine, but just one returns that error message every time I open TB? I ask this because I cannot find any difference in settings between the working addresses and the failing-to-work address. Hmmmm, Bruce

BruceRatcliffe said

I inquire this considering I cannot find whatsoever divergence in settings between the working addresses and the failing-to-work address. Hmmmm, Bruce

peradventure 4 accounts are in a western U.s. cluster of servers and the other is in an eastern states one. Connecting to a server name at a big provider is not a one to one relationship. the load balancer could dump your connection on any of a number of machines. If one is wrongly configured or updated ahead of the rest, then you will encounter different results with identical settings.

Have you tried checking on spider web mail that the account is actually agile? I accept received some truly weird error messages over the years when the provider suspends the account for some reason.

''BruceRatcliffe [[#answer-1274469|said]]'' <blockquote> I ask this because I cannot notice whatever difference in settings betwixt the working addresses and the declining-to-piece of work address. Hmmmm, Bruce </blockquote> possibly 4 accounts are in a western Us cluster of servers and the other is in an eastern states i. Connecting to a server proper noun at a big provider is not a one to one relationship. the load balancer could dump your connection on any of a number of machines. If i is wrongly configured or updated ahead of the balance, then you will see different results with identical settings. Have you tried checking on web mail that the business relationship is really agile? I have received some truly weird error letters over the years when the provider suspends the business relationship for some reason.

Dear Matt, Velly Interestink (I am guessing from your hair that you are old enough to think Hogan's Heroes Tv evidence, with Colonel Clink, famous for "I know nothink", and other German-accented statements). I had no idea about western and eastern cluster of servers. I tried your advice well-nigh checking on spider web mail for math. . . (my problematic business relationship) and discovered it had received a exam email I sent a couple of days ago. so webmail appears tro be working fine. I only tried sending TO math. . . from 1 of my working accounts and receiving FROM math. . . In both cases I got the mistake message, "An error occurred while sending mail. The postal service server responded: Asking failed; Mailbox unavailable. Please verify that your email address is right in your account settings and try once more." Bruce

Dear Matt, Velly Interestink (I am guessing from your hair that you are old enough to remember Hogan's Heroes Idiot box show, with Colonel Clink, famous for "I know nothink", and other German language-accented statements). I had no thought about western and eastern cluster of servers. I tried your advice about checking on web post for math. . . (my problematic account) and discovered it had received a test email I sent a couple of days ago. so webmail appears tro exist working fine. I but tried sending TO math. . . from 1 of my working accounts and receiving FROM math. . . In both cases I got the error message, "An fault occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please verify that your e-mail address is correct in your account settings and try once again." Bruce

Ezalaki modifié na Matt

In that location was an effect some months ago I think where 'mailbox unavailable' appeared when the sending account had a Reply-to Address in Account Settings that was different from the sending address (which information technology usually is). The Reply-to Address wasn't 'authorized' on the provider'south webmail site. A possible factor here?

There was an issue some months agone I recall where 'mailbox unavailable' appeared when the sending account had a Reply-to Accost in Account Settings that was different from the sending address (which information technology normally is). The Reply-to Address wasn't 'authorized' on the provider's webmail site. A possible factor hither?

sfhowes said

A possible factor here?

There is also this silly Yahoo push to remove less secure apps and enforce app passwords.

Try changing the server name in outgoing servers (SMTP) from the ATT provided i of outbound.att.net to smtp.post.yahoo.com hallmark method in approachable servers (SMTP) to oAuth2.0.

I would not propose the change, except in another thread here this week, yahoo back up told an ATT client that was having document bug to alter the incoming server proper noun from the ATT one to the yahoo one, and so if it works for incoming, it most likely works for outgoing. No harm in trying anyway.

If that works, perhaps consider using the yahoo server settings for the incoming as well, that mode y'all can use oAuth2.0 authentication for everything and the whole email mess becomes simpler.

''sfhowes [[#respond-1274813|said]]'' <blockquote> A possible gene hither? </blockquote> In that location is also this giddy Yahoo push to remove less secure apps and enforce app passwords. Endeavour irresolute the server proper name in approachable servers (SMTP) from the ATT provided ane of outbound.att.net to smtp.mail.yahoo.com hallmark method in approachable servers (SMTP) to oAuth2.0. I would not suggest the change, except in another thread hither this week, yahoo support told an ATT customer that was having certificate bug to change the incoming server proper name from the ATT one to the yahoo 1, and then if it works for incoming, it most likely works for outgoing. No harm in trying anyhow. If that works, perhaps consider using the yahoo server settings for the incoming likewise, that way you lot tin use oAuth2.0 authentication for everything and the whole email mess becomes simpler.

Dear SF, Thanks for the data. I spent awhile wandering around my webmail site, but couldn't find anything that was a "Reply to" option. I don't call back that is the problem, considering all 5 of my accounts (the 4 working ones and one malfunctioning) all take the same, greyed-out lettering maxim the exact same thing: "Recipients volition reply to this other address".

And for Matt, YOur patience with me is impressive! I tried changing the server name and hallmark method but am distressing to report the same error message nevertheless pops us when I try to send, or receive messages from my troubled business relationship. Bruce

Dear SF, Thanks for the information. I spent awhile wandering around my webmail site, merely couldn't find anything that was a "Reply to" choice. I don't think that is the trouble, because all 5 of my accounts (the four working ones and one malfunctioning) all have the same, greyed-out lettering saying the exact same thing: "Recipients will reply to this other address". And for Matt, YOur patience with me is impressive! I tried changing the server name and authentication method only am lamentable to report the same fault message even so pops us when I endeavour to transport, or receive messages from my troubled business relationship. Bruce

Reply to: is ready in account settings In the actual account name part above the server settings.

When you lot become to outgoing servers (SMTP) in Thunderbird account settings. what servers are shown. (for some reason I have a moving picture of 5 identically names server in that list)

Reply to: is set in account settings In the actual account name function in a higher place the server settings. When yous go to outgoing servers (SMTP) in Thunderbird business relationship settings. what servers are shown. (for some reason I have a picture of 5 identically names server in that listing)

Dear Matt, Y'all are exactly right! I've seen that multiple redundancy (is that redundant?) for years now, and never questioned it. I just removed all the repeats, and volition see if that helps my problem.

Dear Matt, You are exactly right! I've seen that multiple redundancy (is that redundant?) for years now, and never questioned it. I simply removed all the repeats, and will meet if that helps my problem.

PROGRESS! I was able to SEND a message FROM the problem business relationship. I still can't RECEIVE a bulletin at the problem business relationship. But we are getting at that place. . . Bruce

PROGRESS! I was able to Send a message FROM the problem account. I still can't RECEIVE a message at the problem account. But nosotros are getting in that location. . . Bruce

AIE! Panic! I just discovered that NONE of my iv e-mail accounts, that have always worked, work any more than. I tin can't send emails from any of them. I can transport emails from the one that started this whole upshot by not working. Perhaps I should have been content with 4 out of 5 working...? In whatever case, if you lot have any advice how I could get back to that iv-working ones land, I'd be VERY glad to hear! Bruce

AIE! Panic! I just discovered that NONE of my 4 email accounts, that accept always worked, work any more. I can't send emails from any of them. I can send emails from the one that started this whole issue by non working. Perhaps I should have been content with iv out of 5 working...? In any case, if you have any advice how I could get dorsum to that 4-working ones country, I'd be VERY glad to hear! Bruce

Solution eye oponami

I recall the settings for all your accounts are becoming increasingly complex, with all the conflicting advice, that I'd propose you create a new profile, and add one business relationship with the AT&T recommended settings, and use a secure mail service key in place of the regular account password. Ostend that the account tin send and receive, and then add another account once the starting time ane is working. Give each account a distinct Account Name, and each smtp a distinct Description. Accept each account ship through an smtp server which has the same User Name and password (postal service key) as the incoming account. (Select the account in the left pane of Account Settings, set the smtp in Approachable Server (SMTP) in the right pane).

One time yous have ii accounts working properly, add together the rest in the same way. Later, y'all tin can always transfer data such as Local Folders, accost books etc. from the old profile to the new i. Help/Troubleshooting Data, about:profiles to create and launch multiple profiles.

I recall the settings for all your accounts are condign increasingly complex, with all the conflicting communication, that I'd suggest yous create a new profile, and add together one account with the AT&T recommended settings, and utilize a secure mail key in place of the regular account countersign. Confirm that the account can send and receive, and so add another business relationship once the kickoff one is working. Give each account a distinct Account Name, and each smtp a singled-out Description. Take each account send through an smtp server which has the same User Proper noun and password (mail service key) as the incoming account. (Select the account in the left pane of Business relationship Settings, set the smtp in Outgoing Server (SMTP) in the correct pane). Once you have 2 accounts working properly, add together the residuum in the same manner. Later, y'all can e'er transfer information such as Local Folders, address books etc. from the old profile to the new one. Help/Troubleshooting Information, about:profiles to create and launch multiple profiles.

Wow, SF--You lot certainly know your stuff! I'll endeavor to follow your always-and so-detailed instructions. thanks again for your time and efforts, Bruce Ratcliffe

Wow, SF--Y'all certainly know your stuff! I'll endeavour to follow your ever-so-detailed instructions. thank you again for your fourth dimension and efforts, Bruce Ratcliffe

Hi all, I accept used Thunderbird working happily for several months with a unmarried TB client working from GMail using POP3 and stable settings and password(due south). And so yesterday I became concerned after listening to a fraud issue on the BBC radio and decided I should change my GMail password, which I did. Since yesterday I at present become my emails from GMail on my iPhone (which was always the case) just Thunderbird repeatedly asks me to enter the password, then says "Mail server pop.gmail.com responded: Username and password non accepted." I have tried removing the TB business relationship and re-adding it. I accept tried various Port numbers as more than one are indicated. Also re-changing my Google single sign-in countersign. What else should I do please? Your advice will be much appreciated. Geoff (in Kent UK)

Hi all, I have used Thunderbird working happily for several months with a single TB client working from GMail using POP3 and stable settings and password(s). Then yesterday I became concerned subsequently listening to a fraud issue on the BBC radio and decided I should alter my GMail password, which I did. Since yesterday I now become my emails from GMail on my iPhone (which was e'er the case) only Thunderbird repeatedly asks me to enter the countersign, and then says "Postal service server pop.gmail.com responded: Username and password not accepted." I accept tried removing the TB account and re-calculation it. I have tried diverse Port numbers equally more than one are indicated. Also re-irresolute my Google single sign-in password. What else should I do please? Your advice volition exist much appreciated. Geoff (in Kent Uk)

Ezalaki modifié na LezLezLez

Logon to webmail business relationship - whatever password gets you admission is the same countersign yous utilise in Thunderbird.

In webmail account yous need to select the option to use 'less secure apps' or Gmail will deliberately cake you.

Check Thunderbird does take the correct countersign and user name. Username will be the full gmail email address.

Menu app icon > Options > Options > Security > 'Passwords' tab click on 'Saved Passwords' click on 'Show Passwords' It should have two lines for gmail, mailbox and smtp. Y'all tin edit past right clicking on each line and selecting eg: Edit Password. click on 'Shut' when finished

Logon to webmail account - any countersign gets yous admission is the aforementioned password you lot use in Thunderbird. In webmail account you lot need to select the pick to apply 'less secure apps' or Gmail volition deliberately cake y'all. Check Thunderbird does have the right password and user name. Username will be the full gmail email accost. Bill of fare app icon > Options > Options > Security > 'Passwords' tab click on 'Saved Passwords' click on 'Prove Passwords' It should have two lines for gmail, mailbox and smtp. You can edit by right clicking on each line and selecting eg: Edit Password. click on 'Shut' when finished

Ezalaki modifié na Toad-Hall

Hi Toad-Hall, thanks for your very prompt reply to my post. I also offer this rapid annotate. Your solution looks promising and I am investigating. It looks as thought my activity of irresolute my Google single sign-om countersign has inverse my "Less secure apps" access flag to "Off". I have only changed information technology dorsum to "On" and am at present getting emails from 2014 onwards! I will see if i tin revert to just those from recent times, only this all looks hopeful. I am at least continued to my GMail account now. Thank you lot for your assistance. Geoff.

Hello Toad-Hall, thanks for your very prompt reply to my post. I likewise offer this rapid comment. Your solution looks promising and I am investigating. It looks as thought my activeness of irresolute my Google unmarried sign-om password has changed my "Less secure apps" access flag to "Off". I take just inverse it dorsum to "On" and am now getting emails from 2014 onwards! I will come across if i tin can revert to only those from recent times, but this all looks hopeful. I am at to the lowest degree connected to my GMail account now. Thanks for your aid. Geoff.

Also, I have provided formal feedback to Google suggeting that it is totally incorrect to modify any setting when the user is trying to only change his/her password. Perhaps if we all complained something might be washed? This URL should assistance y'all "https://world wide web.google.com/tools/feedback/intl/en/learnmore.html"

Also, I have provided formal feedback to Google suggeting that it is totally wrong to change whatever setting when the user is trying to only change his/her password. Perhaps if we all complained something might be done? This URL should help you "https://world wide web.google.com/tools/feedback/intl/en/learnmore.html"

Google are going to remove the less secure apps option entirely. They will be starting this in June with one thousand-suite.

Then I doubt they volition react at all. Thunderbird however does demand to react, so folks can however access their mail without the setting.

Google are going to remove the less secure apps option entirely. They will be starting this in June with g-[https://gsuiteupdates.googleblog.com/2019/12/less-secure-apps-oauth-google-username-password-wrong.html suite]. So I dubiety they will react at all. Thunderbird however does demand to react, and so folks can still admission their post without the setting.

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Source: https://support.mozilla.org/ln/questions/1275119