Thunderbird stopped receiving messages
My previous e-mail client, Foxmail, is still picking up e-mails normally. Sending e-mails from Thunderbird (TB) OK. I installed TB in July and started using it very recently, so I've very little experience of it, and don't know what to do next. Your help will be greatly appreciated.
Solución elegida
If you are using ESET/NOD32 security/AV there is high probability is causing your problems. According to ESET forums, you should temporarily disable SSL on ESET until they solve the problem per https://support.eset.com/en/kb3126-disable-ssl-filtering-in-eset-windows-products?ref=esf - the problem is being reported by dozens of users https://forum.eset.com/topic/26517-problems-with-thunderbird-and-imaps/ https://forum.eset.com/discover/
You might also inform them of your difficulty.
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Do you have the ESET security software?
Solución elegida
If you are using ESET/NOD32 security/AV there is high probability is causing your problems. According to ESET forums, you should temporarily disable SSL on ESET until they solve the problem per https://support.eset.com/en/kb3126-disable-ssl-filtering-in-eset-windows-products?ref=esf - the problem is being reported by dozens of users https://forum.eset.com/topic/26517-problems-with-thunderbird-and-imaps/ https://forum.eset.com/discover/
You might also inform them of your difficulty.
Thanks to all responders: I followed the advice for ESET SSL and it cleared the problem immediately. I am using ESET 'Internet Security'.