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The current operation on 'Inbox' did not succeed. The mail server for account [gmail email address] responded: Unknown command

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  • Èsì tí ó kẹ́hìn lọ́wọ́ Mike Ingram

siriwanb
siriwanb
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I am using Windows 10 and Thunderbird 45.0 with two gmail email addresses setup, one is working perfectly fine, the other does not work at all.

I deleted and added the "broken" account many times. Once added, I click on inbox and a small window shows up with the message:

"The current operation on 'Inbox' did not succeed. The mail server for account [my gmail email address] responded: Unknown command [random code]"

The [random code] changes each time I click on inbox or try to check for new mail of that account.

I checked the settings for both accounts in gmail, they are setup/configured exactly the same (pop/imap is activated).

I am using both email accounts with my mobile without any issues.

I searched for a solution and found a couple of pages discussing the same or similar issue, such as:

https://support.mozilla.org/en-US/questions/1103857 In this one there is a screenshot attached that shows the box that shows up with the message, I get the exact same box/message. However, my gmail account is not a "Google for Work" account and IMAP is activated.

Another person with a similar issue reported that it just went away the next morning, but I am having this issue since days and I have never been able to open the inbox of the "broken" account.

The strange thing is that the other gmail account works perfectly fine, and that both of them work fine on my mobile, so I really don't know what to do.

I also checked the Thunderbird Error Log, it is empty.

Anyone got an idea what is going on?

I am using Windows 10 and Thunderbird 45.0 with two gmail email addresses setup, one is working perfectly fine, the other does not work at all. I deleted and added the "broken" account many times. Once added, I click on inbox and a small window shows up with the message: "The current operation on 'Inbox' did not succeed. The mail server for account [my gmail email address] responded: Unknown command [random code]" The [random code] changes each time I click on inbox or try to check for new mail of that account. I checked the settings for both accounts in gmail, they are setup/configured exactly the same (pop/imap is activated). I am using both email accounts with my mobile without any issues. I searched for a solution and found a couple of pages discussing the same or similar issue, such as: https://support.mozilla.org/en-US/questions/1103857 In this one there is a screenshot attached that shows the box that shows up with the message, I get the exact same box/message. However, my gmail account is not a "Google for Work" account and IMAP is activated. Another person with a similar issue reported that it just went away the next morning, but I am having this issue since days and I have never been able to open the inbox of the "broken" account. The strange thing is that the other gmail account works perfectly fine, and that both of them work fine on my mobile, so I really don't know what to do. I also checked the Thunderbird Error Log, it is empty. Anyone got an idea what is going on?

All Replies (7)

Matt
Matt
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  • Top 10 Contributor
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So guesses only.

Anti virus scanner (they can get really messed up by SSL/TLS) Correct connection security in account settings. If using IMAP make sure to connect using oAuth2.0 as the Authentication method... Google are putting so many hurdles in the way it is about the only thing that works reliably. Having said that I use plain old passwords with POP.

marie15
marie15
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I have the same problem. Windows 10 and Thunderbird 45.2.0. I just added a Gmail account to Thunderbird where I already have an ISP providers email account. (1) The ISP provider's email account on Thunderbird is working well and the IMAP for that is SSL/TLS so seems the antivirus has no problem with it. (2) The Gmail account is set up as IMAP at Gmail and on Thunderbird. The only thing is that it was not set up as IMAP when I created the Thunderbird account. I only checked after things turned out not to work, because the instructions said all new Gmail is IMAP by default, but that turned out not to be the case. (3) Both IMAP server and SMTP server for Gmail are set up as OAuth2

Mike Ingram
Mike Ingram
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I am having the same problem. Has someone find a solution? I have two gmail accounts one works fine the second just stopped working a day or two ago. I get this error:

The current operation on 'Inbox' did not succeed. The mail server for account mingram55@gmail.com responded: Unknown command t2mb26091426vka.

How do I fix things? I have not seen a clear answer yet.

Win 10 TB 45.2.0

Mike Ingram
Mike Ingram
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Anyone have a solution for this?

Mike Ingram
Mike Ingram
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I am tired of this. I cannot get an answer for this. I am done. The other e-mail clients I use work fine.

Sorry to see thunderbird go bye bye.,

Matt
Matt
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  • Top 10 Contributor
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mingram55 said

I am tired of this. I cannot get an answer for this. I am done. The other e-mail clients I use work fine. Sorry to see thunderbird go bye bye.,

You have not tried to get an answer.... your have co opted someone elses attempt and apparently thought someone would help you.

If you really want an answer look to this information. https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems#Diagnosis_Steps

Ti ṣàtúnṣe nípa Matt

Mike Ingram
Mike Ingram
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Matt,

No, I have been searching on this problem in many places and have not found an answer. It should not be this hard. This did occur when I updated Thunderbird. All other e-mail clients are working fine. It makes no sense that one gmail account works fine and the other gmail does not.

In mailbird and outlook all is fine. I like the thunderbird interface the best but might be force to change.