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2024/4/18 -Cause. Incorrect or missing PTR record of the sender's mail server. Resolution. Contact the server hoster or provider of the IP address in ...

2024/3/28 -25 Client host rejected: cannot find your hostname" and are accepted on multiple retries. We confirm the Host Names are properly configured for our IP ...

2024/3/10 -3. bestperson: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [5.35.82.146]. probaly your issue. bestperson: SMTP error from remote mail ...

2024/2/23 -Although I think my saslauth is fairly secure, I would prefer if they couldn't even try. Is there no way to get the "unknown" hostname to be rejected earlier?

4時間前 -Jetzt registrieren und ausprobieren! smtp;rcpt error 550 5.7.25 client host rejected: cannot find your hostname ... cannot find your hostname, [XX.XX.XX.XX]. Wir ...

2024/4/20 -If an IP address/hostname/domain were added to a blacklist, it means that the server is/was considered as a source of spam. For Plesk on Linux: If spam emails ...

2024/4/4 -... Client host rejected: cannot find your reverse hostname ... Open Proxy / Compromised and Exploited Host / Phishing and Malware Source ... Is this your IP? You may ...

2024/4/18 -Can't find what you're looking for? We'll help you find an answer or connect you with Customer Support through live chat or email. Contact Us. No results.

2024/3/13 -Check that key-based authentication is allowed by the server. Make sure the private key is readable by the SSH client. If you're using PuTTY, make sure your SSH ...

2024/3/6 -Log into your Gmail account. · Click on the Cog icon menu (in the upper-right) and select See all settings. · Click the Accounts tab. · Next to Check mail from ...