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Connection to server was interrupted. SOLVED by changing connection security to "SSL/TLS"

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  • 6 have this problem
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  • Last reply by CarlaB

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Since I moved to latest TB level 78.2.2 I get the error message 'Connection to server was interrupted' when I try to receive emails.

Since I moved to latest TB level 78.2.2 I get the error message 'Connection to server was interrupted' when I try to receive emails.

Modified by Wayne Mery

Chosen solution

Problem can now be closed.

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could no connect to server inbound att the connection was refuesd

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I have had this problem since 11/29/2020. No emails received since that date. Provider is att.net. Have tried several of the suggestions here to no avail. My mail is available on the web, no problem.

What is the Mozilla response for a solution?

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This is the message I got and I have done all of the suggestions too. Please help

Sending of the message failed. Failed due to unexpected error 80004005. No description is available. The message could not be sent using Outgoing server (SMTP) smtp.gmail.com for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again.

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