Thunderbird Server Error Please Try Again Later

Post server inbound.att.net responded: Server fault - Please endeavour once again later.

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

Hmmmm. . .                  

For a month now 1 of my v email addresses, which formerly worked just dandy, returns this message, upon opening Thunderbird: "Sending of password for user (my e-mail address)@att.cyberspace did not succeed. Postal service server inbound.att.internet responded: Server error - Please attempt once again later." I've checked both Tools/account settings, and Tools/options, and as well checked my (hidden) passwords for all 5 accounts. I tin't find anything DIFFERENT on the one that doesn't work. When I try SENDING a bulletin from this same problematic email account, I go this bulletin: "An error occurred while sending mail. The postal service server responded: Asking 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 style, simply that does not solve the problem. Hmmmm. . .

Chosen solution

I recollect the settings for all your accounts are becoming increasingly complex, with all the conflicting advice, that I'd suggest yous create a new profile, and add one account with the AT&T recommended settings, and use a secure postal service key in place of the regular account password. Confirm that the account can ship and receive, then add another business relationship one time the first one is working. Give each account a distinct Account Proper name, and each smtp a distinct Description. Accept each account send through an smtp server which has the same User Proper name and password (mail central) as the incoming account. (Select the business relationship in the left pane of Account Settings, gear up the smtp in Outgoing Server (SMTP) in the right pane).

Once you have two accounts working properly, add the balance in the aforementioned mode. Later, yous tin ever transfer data such as Local Folders, address books etc. from the onetime profile to the new one. Help/Troubleshooting Information, nigh:profiles to create and launch multiple profiles.

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Info at link mentions: Avoid email 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. Acquire more virtually the security upgrade.

If your programme or app is affected, be certain to create a secure postal service key. You'll need it to set up to proceed getting your AT&T electronic mail with a desktop program or mobile app.

https://world wide web.att.com/support/article/email-support/KM1010523

Info at link mentions: Avoid email hiccups A security upgrade is coming to AT&T e-mail, so if you have certain email programs or apps, you'll have to update your settings. Learn more virtually the security upgrade. If your program or app is affected, be sure to create a secure mail key. Y'all'll need information technology to fix to keep getting your AT&T email with a desktop programme or mobile app. https://world wide web.att.com/back up/commodity/email-support/KM1010523

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

If I demand to update my settings, to get the trouble address to work but have not done then yet, why exercise iv of my e-mail addresses piece of work fine, but just 1 returns that error message every time I open TB? I ask this because I cannot discover any difference in settings between the working addresses and the declining-to-work accost. Hmmmm, Bruce

Thanks, Toad (I'g hoping we are on a first-name basis : ), for your advice, but I'm withal puzzled by merely one thing: If I need to update my settings, to get the trouble address to work just have non done so still, why do 4 of my e-mail addresses work fine, but merely one returns that mistake bulletin every time I open TB? I ask this because I cannot detect whatsoever deviation in settings between the working addresses and the declining-to-work address. Hmmmm, Bruce

BruceRatcliffe said

I ask this considering I cannot observe any difference in settings betwixt the working addresses and the failing-to-piece of work accost. Hmmmm, Bruce

perhaps iv accounts are in a western United states cluster of servers and the other is in an eastern states one. Connecting to a server proper name at a big provider is not a one to i relationship. the load balancer could dump your connection on whatsoever of a number of machines. If 1 is wrongly configured or updated alee of the residual, then you lot volition see different results with identical settings.

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

''BruceRatcliffe [[#reply-1274469|said]]'' <blockquote> I inquire this considering I cannot notice whatsoever deviation in settings between the working addresses and the failing-to-work address. Hmmmm, Bruce </blockquote> perhaps 4 accounts are in a western US cluster of servers and the other is in an eastern states one. 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 whatsoever of a number of machines. If one is wrongly configured or updated ahead of the rest, and so you will encounter different results with identical settings. Take yous tried checking on web mail that the account is actually agile? I take received some truly weird error messages over the years when the provider suspends the account for some reason.

Dear Matt, Velly Interestink (I am guessing from your hair that you are former enough to remember Hogan's Heroes TV bear witness, with Colonel Clink, famous for "I know nothink", and other High german-accented statements). I had no idea nigh western and eastern cluster of servers. I tried your advice nigh checking on web mail for math. . . (my problematic account) and discovered it had received a test email I sent a couple of days ago. so webmail appears tro be working fine. I just tried sending TO math. . . from i of my working accounts and receiving FROM math. . . In both cases I got the mistake message, "An fault occurred while sending mail. The postal service server responded: Request failed; Mailbox unavailable. Please verify that your e-mail address is correct in your account settings and try again." Bruce

Dear Matt, Velly Interestink (I am guessing from your hair that you are quondam enough to remember Hogan's Heroes Telly bear witness, 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 most checking on web postal service for math. . . (my problematic account) and discovered it had received a test e-mail I sent a couple of days agone. and so webmail appears tro be working fine. I simply tried sending TO math. . . from ane of my working accounts and receiving FROM math. . . In both cases I got the mistake message, "An fault occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Delight verify that your email address is right in your account settings and try again." Bruce

Modified by Matt

There was an issue some months agone I think where 'mailbox unavailable' appeared when the sending business relationship had a Reply-to Address in Business relationship Settings that was dissimilar from the sending address (which it normally is). The Reply-to Address wasn't 'authorized' on the provider'south webmail site. A possible factor here?

At that place was an consequence some months ago I remember where 'mailbox unavailable' appeared when the sending account had a Reply-to Accost in Account Settings that was dissimilar from the sending address (which it usually is). The Respond-to Address wasn't 'authorized' on the provider's webmail site. A possible cistron here?

sfhowes said

A possible factor here?

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

Try irresolute the server name in outgoing servers (SMTP) from the ATT provided one of outbound.att.net to smtp.mail.yahoo.com authentication method in approachable servers (SMTP) to oAuth2.0.

I would non advise the modify, except in another thread hither this week, yahoo support told an ATT client that was having document issues to change the incoming server name from the ATT 1 to the yahoo ane, and so if it works for incoming, information technology well-nigh likely works for outgoing. No harm in trying anyway.

If that works, perhaps consider using the yahoo server settings for the incoming likewise, that way you can use oAuth2.0 hallmark for everything and the whole email mess becomes simpler.

''sfhowes [[#answer-1274813|said]]'' <blockquote> A possible cistron here? </blockquote> There is also this silly Yahoo push button to remove less secure apps and enforce app passwords. Try changing the server proper noun in outgoing servers (SMTP) from the ATT provided one of outbound.att.cyberspace to smtp.mail.yahoo.com authentication method in outgoing servers (SMTP) to oAuth2.0. I would non suggest the modify, except in another thread here this week, yahoo support told an ATT customer that was having document issues to modify the incoming server proper name from the ATT one to the yahoo one, so if information technology works for incoming, it most likely works for outgoing. No harm in trying anyway. If that works, possibly consider using the yahoo server settings for the incoming as well, that mode you lot tin utilise oAuth2.0 authentication for everything and the whole email mess becomes simpler.

Dear SF, Thanks for the information. I spent awhile wandering around my webmail site, but couldn't detect anything that was a "Answer to" choice. I don't think that is the problem, because all 5 of my accounts (the 4 working ones and i malfunctioning) all have the same, greyed-out lettering proverb the verbal same thing: "Recipients will respond to this other address".

And for Matt, YOur patience with me is impressive! I tried changing the server name and authentication method but am sad to study the same error bulletin still pops united states when I attempt to send, or receive messages from my troubled account. Bruce

Love SF, Thanks for the information. I spent awhile wandering around my webmail site, but couldn't find anything that was a "Reply to" option. I don't think that is the problem, because all 5 of my accounts (the iv working ones and one malfunctioning) all have the same, greyed-out lettering proverb the exact same affair: "Recipients will respond to this other accost". And for Matt, YOur patience with me is impressive! I tried irresolute the server proper noun and authentication method simply am sad to report the aforementioned error message still pops us when I endeavour to send, or receive letters from my troubled business relationship. Bruce

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

When you get to outgoing servers (SMTP) in Thunderbird account settings. what servers are shown. (for some reason I have a movie of v identically names server in that list)

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

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

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

PROGRESS! I was able to Transport a message FROM the trouble account. I even so tin can't RECEIVE a bulletin at the problem business relationship. But nosotros are getting there. . . Bruce

PROGRESS! I was able to Ship a bulletin FROM the problem account. I still can't RECEIVE a message at the problem account. Merely we are getting there. . . Bruce

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

AIE! Panic! I just discovered that NONE of my four electronic mail accounts, that have always worked, work whatsoever more. I can't send emails from any of them. I tin can send emails from the one that started this whole effect by not working. Perhaps I should have been content with four out of 5 working...? In whatsoever example, if y'all have any advice how I could get dorsum to that 4-working ones state, I'd exist VERY glad to hear! Bruce

Chosen Solution

I think the settings for all your accounts are becoming increasingly complex, with all the alien communication, that I'd advise you create a new profile, and add together one account with the AT&T recommended settings, and use a secure postal service primal in place of the regular account password. Confirm that the business relationship tin send and receive, then add another account one time the first one is working. Give each account a distinct Account Proper noun, and each smtp a distinct Description. Have each business relationship ship through an smtp server which has the same User Proper name and password (mail service key) every bit the incoming account. (Select the account in the left pane of Account Settings, gear up the smtp in Outgoing Server (SMTP) in the right pane).

Once you lot have two accounts working properly, add together the rest in the aforementioned way. Later, y'all can always transfer data such equally Local Folders, accost books etc. from the sometime profile to the new one. Help/Troubleshooting Data, about:profiles to create and launch multiple profiles.

I think the settings for all your accounts are condign increasingly complex, with all the alien advice, that I'd suggest you create a new contour, and add 1 account with the AT&T recommended settings, and apply a secure mail fundamental in place of the regular business relationship countersign. Confirm that the account can send and receive, then add another account in one case the get-go one is working. Requite each account a distinct Account Name, and each smtp a distinct Description. Have each account send through an smtp server which has the same User Name and password (mail central) as the incoming business relationship. (Select the account in the left pane of Account Settings, set up the smtp in Outgoing Server (SMTP) in the right pane). In one case yous have ii accounts working properly, add together the residue in the aforementioned fashion. Later, yous tin can always transfer data such as Local Folders, address books etc. from the quondam profile to the new one. Help/Troubleshooting Information, about:profiles to create and launch multiple profiles.

Wow, SF--YOu certainly know your stuff! I'll try to follow your ever-so-detailed instructions. thanks again for your fourth dimension and efforts, Bruce Ratcliffe

Wow, SF--YOu certainly know your stuff! I'll attempt to follow your always-so-detailed instructions. thank you again for your time and efforts, Bruce Ratcliffe

Hi all, I accept used Thunderbird working happily for several months with a single TB client working from GMail using POP3 and stable settings and password(due south). And so yesterday I became concerned later listening to a fraud consequence on the BBC radio and decided I should alter my GMail countersign, which I did. Since yesterday I now get my emails from GMail on my iPhone (which was always the case) just Thunderbird repeatedly asks me to enter the password, then says "Postal service server pop.gmail.com responded: Username and password not accustomed." I have tried removing the TB account and re-calculation it. I have tried diverse Port numbers as more than one are indicated. Likewise re-irresolute my Google single sign-in password. What else should I do delight? Your communication will be much appreciated. Geoff (in Kent Britain)

Hi all, I take used Thunderbird working happily for several months with a single TB client working from GMail using POP3 and stable settings and password(s). 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 now get my emails from GMail on my iPhone (which was always the example) only Thunderbird repeatedly asks me to enter the password, then says "Mail server pop.gmail.com responded: Username and countersign non accepted." I have tried removing the TB business relationship and re-adding information technology. I have tried various Port numbers equally more than one are indicated. Also re-changing my Google single sign-in password. What else should I do please? Your advice will exist much appreciated. Geoff (in Kent United kingdom)

Modified by LezLezLez

Logon to webmail account - whatever password gets you access is the same password y'all use in Thunderbird.

In webmail account you need to select the option to employ 'less secure apps' or Gmail will deliberately block y'all.

Check Thunderbird does accept the right countersign and user proper name. Username volition exist the full gmail email address.

Menu 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 lot can edit by correct clicking on each line and selecting eg: Edit Password. click on 'Close' when finished

Logon to webmail business relationship - whatsoever password gets you access is the same countersign you use in Thunderbird. In webmail account you need to select the option to use 'less secure apps' or Gmail volition deliberately cake you. Check Thunderbird does have the correct password and user name. Username will exist the full gmail email accost. Menu app icon > Options > Options > Security > 'Passwords' tab click on 'Saved Passwords' click on 'Bear witness Passwords' It should have two lines for gmail, mailbox and smtp. Yous can edit past right clicking on each line and selecting eg: Edit Countersign. click on 'Shut' when finished

Modified past Toad-Hall

Hi 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. Information technology looks equally thought my action of changing my Google unmarried sign-om password has changed my "Less secure apps" admission flag to "Off". I accept simply changed it back to "On" and am now getting emails from 2014 onwards! I will meet if i tin revert to but those from recent times, merely this all looks hopeful. I am at least continued to my GMail business relationship now. Thank you for your assist. Geoff.

Howdy Toad-Hall, cheers for your very prompt answer to my post. I besides offer this rapid comment. Your solution looks promising and I am investigating. It looks equally thought my activeness of changing my Google single sign-om countersign has changed my "Less secure apps" admission flag to "Off". I have just changed it back to "On" and am now getting emails from 2014 onwards! I volition come across if i can revert to just those from recent times, but this all looks hopeful. I am at least connected to my GMail business relationship now. Thank you for your help. Geoff.

Also, I take provided formal feedback to Google suggeting that it is totally incorrect to change any setting when the user is trying to only change his/her password. Perhaps if nosotros all complained something might be done? This URL should aid yous "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 incorrect to change whatever setting when the user is trying to just change his/her countersign. Perhaps if we all complained something might be done? This URL should help you "https://www.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 m-suite.

So I incertitude they volition react at all. Thunderbird however does need to react, then folks can even so admission their mail without the setting.

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

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Source: https://support.mozilla.org/en-US/questions/1275119

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