Notepad

Terms

SPF

December 26, 2025December 26, 2025 AL2Meta

SPF (Sender Policy Framework) is an email authentication method that helps prevent email spoofing by specifying which mail servers are allowed to send email on behalf of a

Terms

DKIM

December 26, 2025December 26, 2025 AL2Meta

DKIM (DomainKeys Identified Mail) is an email authentication method that helps verify the legitimacy of an email message and protect against email spoofing. Here’s a clear breakdown: 1.

Terms

OpenDKIM

December 26, 2025December 30, 2025 AL2Meta

OpenDKIM is an open-source software tool that implements DKIM (DomainKeys Identified Mail) for email systems. Essentially, it helps verify the authenticity of emails and prevents email spoofing. Here’s

Email Server Notes

OpenDKIM Signing Table not matching wildcard email addresses despite correct Signing Table configuration

December 25, 2025January 16, 2026 AL2Meta

In this problem, I have configured OpenDKIM to use a signing table, which was saved at /etc/opendkim/signing.table. The signing table contains: This is supposed to allow OpenDKIM to