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Keep getting error message that SMTP failed and server refusing SMTP. Server says no problem at their end...

Thunderbird Felsökning
sfhowes svarade 5 år sedan
gknutson
gknutson

I keep trying to send eMail replies and get this message (see attached image).....

Server says no problem at their end, get in touch with you.

Attached screen capture of settings....

Any suggestions?

I keep trying to send eMail replies and get this message (see attached image)..... Server says no problem at their end, get in touch with you. Attached screen capture of settings.... Any suggestions?
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Alla svar (2)

gknutson
gknutson Frågans ägare

PS. These problems started with the new versions of Thunderbird. Worked fine with Amiga and Windows until just recently....

sfhowes
sfhowes

Where did you find the settings? According to this source, the outgoing server security should be SSL/TLS on port 465. It may also work with STARTTLS on 587, but the User Name for incoming and outgoing should be the full email address.

If the settings are correct, the problem might be caused by incompatible antivirus scanning outgoing mail, or possibly a TLS incompatibility with TB 78.