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Unable to send mail from Thunderbird

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  • Last reply by sfhowes

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Since yesterday we are unable to send emails from our Thunderbird account. We use a local server as a mail provider (methownet.com) and I went through trying to fix the problem with them and nothing is wrong on their end (we can still receive messages too). We have Norton 360 security service and I cannot figure out how to disable this. We are using Windows 8.1 on a desktop and have Thunderbird version 78.11.0. Attached is a screenshot of our SMTP settings.

Since yesterday we are unable to send emails from our Thunderbird account. We use a local server as a mail provider (methownet.com) and I went through trying to fix the problem with them and nothing is wrong on their end (we can still receive messages too). We have Norton 360 security service and I cannot figure out how to disable this. We are using Windows 8.1 on a desktop and have Thunderbird version 78.11.0. Attached is a screenshot of our SMTP settings.
Attached screenshots

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See if these instructions for Norton help:

https://support.mozilla.org/en-US/questions/1339757#answer-1420165