Thunderbird update 78
Unfortunately, it is not the first time that Thunderbird is defective after an update. I have currently not received any e-mails since November 29, 2020 - no inbox. Sent mails are also not saved - only locally. Hardware: Windows 10 - Mail service provider GMX. The mails arrive on other hardware devices such as apple ipad or Android smart phone. I would be pleased if mails would arrive on my PC again. I hope for your support.
Sincerely Mr. M. Engelhorn
Wšě wotmołwy (6)
I still have the same problem, but since a slightly different date. I asked my Internet provider, and they suggested that it might be problems with the password. I switched off my antivirus program and I changed my passrord, but still couldn't get in touch with the provider's server. Then I closed my mail account in Thunderbird and configurated the same account again. But the account could not be connected.
Well, now I find that this issue is mentioned in the pages which are linked to, to the right on this page. I will read them and hope that it might give me a solution.
first check your AV/FW/SS software, you may have to disable "mail-protection" option, more info.
some options are mentioned here. backup all TB-"profile" then begin to follow option(s).
major difference of earlier v68 series TB & newer v78 series TB is that by-default v78 will not use weak/old/unsafe security protocols, unless user manually changes it, and other (problematic) changes are: usage of non-GPG based OpenPGP , not sufficient warning to users that Downgrade will not possible, or what exact chnages are done & what wil lstop functioning, etc.
Wot atErik změnjeny
My problem was due to a minor change in my antivirus, ESET/NOD32. If you use ESET I think you can solve your problem in a simple way by following their instruction in https://support.eset.com/en/kb3126-disable-ssl-filtering-in-eset-windows-products .
hans210 said
My problem was due to a minor change in my antivirus, ESET/NOD32. If you use ESET I think you can solve your problem in a simple way by following their instruction in https://support.eset.com/en/kb3126-disable-ssl-filtering-in-eset-windows-products .
Thanks for pointing this out. Many people have been having trouble with ESET.
m.engelhorn said
Unfortunately, it is not the first time that Thunderbird is defective after an update. I have currently not received any e-mails since November 29, 2020 - no inbox.
This date very much suggests your problem is likely caused by ESET. But in case it is not, you can find broader advice in the knowledge base, for example https://support.mozilla.org/en-US/kb/cannot-receive-messages