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Debian 11 is approaching its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.80 will be the last release to support it.
If you are running Plesk Obsidian on Debian 11, we recommend you upgrade those servers to Debian 12 using our dist-upgrade tool.
Issue Do not send email to Yahoo
- Thread starter karyo
- Start date
"it does not send any emails to Yahoo"
If you want a useful answer, it might be a good idea to give some more information. Who is trying to send mail (Plesk, a webform???) and what error message do you get? You ask other people to 'solve this problem', but then you must first describe the problem. Right now it is like you are walking into a pc shop and say to the employee 'My computer is not working, how should I solve it?'. Please be more specific.
If you want a useful answer, it might be a good idea to give some more information. Who is trying to send mail (Plesk, a webform???) and what error message do you get? You ask other people to 'solve this problem', but then you must first describe the problem. Right now it is like you are walking into a pc shop and say to the employee 'My computer is not working, how should I solve it?'. Please be more specific.
Jun 23 06:59:51 server3 postfix/smtp[19576]: 3DFBC7C8BB: host mta7.am0.yahoodns.net[67.195.204.73] said: 421 4.7.0 [TSS04] Messages from temporarily d$
Jun 23 06:59:51 server3 postfix/smtp[19576]: 3DFBC7C8BB: lost connection with mta7.am0.yahoodns.net[67.195.204.73] while sending RCPT TO
It looks like the IP of your server is blacklisted on the Yahoo side. I'd suggest you read this KB article and submit a request to Yahoo to unban your server: An IP address of a Plesk mail server got blacklisted. How to troubleshoot?
