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Hi: I have been trying to report some spam messages to SpamCop. But when I report the entire message with the headers, SpamCop can't determine the source IP of the spamming server. I have checked and some messages get the "Received from" header but others (like Gmail messages) don't. Other...

Hello: Is there a way to change the default SRS domain used for rewriting forwarded emails? When the default domain is used for rewriting if such domain is whitelisted in antispam policies then filtering is bypassed even when the email comes from an external domain. This post (Important note...

We have a Plesk Obsidian Linux server hosting several domains. We only host e-mail servers for every domain on Plesk. We don't host web pages/sites on these domains. So DNS isn't managed/delegated to Plesk server. We want to secure a domain with Let's Encrypt certificates, but when we try to...