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I am unable to receive or send external emails from a number of ISP's.

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  • Last reply by Wayne Mery

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I am unable to receive or send external emails from a number of ISP's. Appears to have been since an upgrade to 78.5.0. Others I know have the same problem. Message says connected to server, but no new emails are coming in, I can't move emails to other folders, and sending emails results in sent copies not going to the sent folder, but instead a message offering saving the Local Folders is presented. It isn't a server problem because I can use Outlook as normal - but I detest Outlook, and would prefer that Thunderbird worked!

I am unable to receive or send external emails from a number of ISP's. Appears to have been since an upgrade to 78.5.0. Others I know have the same problem. Message says connected to server, but no new emails are coming in, I can't move emails to other folders, and sending emails results in sent copies not going to the sent folder, but instead a message offering saving the Local Folders is presented. It isn't a server problem because I can use Outlook as normal - but I detest Outlook, and would prefer that Thunderbird worked!

Chosen solution

If you are using ESET/NOD32 security/AV then probability is very high it 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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Oh, and I have read and tried the answers about removing cookies with no success.

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Chosen Solution

If you are using ESET/NOD32 security/AV then probability is very high it 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.