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Can't send email from any account, send key non-responsive. SOLVED caused by "Copy Sent to Current" add-on

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Starting this morning (18 Sept. 2024) I can receive email but am unable to send it on any of our four configured accounts (configured on three different servers.) Pushing "Send" flashes the screen briefly acknowledging the button push, but otherwise does nothing – it does not say anything about a password or smtp misconfiguration, it just does nothing. Using CTRL-Enter to Send Now similarly does nothing. Yesterday everything worked.

System is running fully updated Windows 10, Thunderbird version is 128.2.2esr.

I have tried restarting Thunderbird and rebooting the system. Nothing changes.

I tried downloading and re-installing Thunderbird. The site gave me the same 128.2.2esr. Send still doesn't work.

All email works properly on iPad tablets and Android phones.

Starting this morning (18 Sept. 2024) I can receive email but am unable to send it on '''any''' of our four configured accounts (configured on three different servers.) Pushing "Send" flashes the screen briefly acknowledging the button push, but otherwise does nothing – it does not say anything about a password or smtp misconfiguration, it just does nothing. Using CTRL-Enter to Send Now similarly does nothing. Yesterday everything worked. System is running fully updated Windows 10, Thunderbird version is 128.2.2esr. I have tried restarting Thunderbird and rebooting the system. Nothing changes. I tried downloading and re-installing Thunderbird. The site gave me the same 128.2.2esr. Send still doesn't work. All email works properly on iPad tablets and Android phones.

Modified by Wayne Mery

Chosen solution

Ann posted at https://support.mozilla.org/en-US/questions/1464322?page=2#answer-1675892 ...

Update: Wayne Mery suggested checking the error log. In it I found several add-on WARNings. I didn't know if it was significant, so I disabled all my add-ons – and found I could then send.

I re-enabled them one at a time until Send again failed (by doing nothing, as before). The culprit was "Copy sent to current (disabled)". Despite the "(disabled)" it was, in fact, enabled. I disabled it and now I can send.

I would never have discovered this on my own, so I thank everyone (primarily Wayne) who started me down the right path. I post it here in case it is useful to help others avoid such obscurities in future releases.

Oh, and I was wrong about 115.15.0 on Win 7. It is busy doing nothing, and I will now uninstall it.

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All Replies (4)

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scott168 said

https://support.mozilla.org/en-US/questions/1464322

Please direct follow ups to scott168's question link.

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Chosen Solution

Ann posted at https://support.mozilla.org/en-US/questions/1464322?page=2#answer-1675892 ...

Update: Wayne Mery suggested checking the error log. In it I found several add-on WARNings. I didn't know if it was significant, so I disabled all my add-ons – and found I could then send.

I re-enabled them one at a time until Send again failed (by doing nothing, as before). The culprit was "Copy sent to current (disabled)". Despite the "(disabled)" it was, in fact, enabled. I disabled it and now I can send.

I would never have discovered this on my own, so I thank everyone (primarily Wayne) who started me down the right path. I post it here in case it is useful to help others avoid such obscurities in future releases.

Oh, and I was wrong about 115.15.0 on Win 7. It is busy doing nothing, and I will now uninstall it.

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You might want to report your issues to the author of the add-on at https://addons.thunderbird.net/en-us/thunderbird/addon/copy-sent-to-current/

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