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Error sending mails following update to 78.4.0.

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  • 최종 답변자: Mark-E-H

Mark-E-H
Mark-E-H
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This morning Thunderbird was updated to 78.4.0. Incoming mails (POP3) work fine. But suddenly outgoing mails are rejected: "An error occurred while sending mail. The mail server responded 450 4.1.8 <my email>: Sender address rejected: Domain not found. Please check the message recipient ".... recipient ..." and try again.

Sending mails worked fine till update was installed, and I have not changed any SMTP settings. Same error for all recipients of mail.

Any suggestions?

This morning Thunderbird was updated to 78.4.0. Incoming mails (POP3) work fine. But suddenly outgoing mails are rejected: "An error occurred while sending mail. The mail server responded 450 4.1.8 <my email>: Sender address rejected: Domain not found. Please check the message recipient ".... recipient ..." and try again. Sending mails worked fine till update was installed, and I have not changed any SMTP settings. Same error for all recipients of mail. Any suggestions?

선택된 해결법

Turned out to be a problem with the provider. Problem is solved.

문맥에 따라 이 답변을 읽어주세요 👍 0

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Mark-E-H
Mark-E-H 질문자
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선택된 해결법

Turned out to be a problem with the provider. Problem is solved.