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  1. M

    SPF verification when sender is Empty

    Hey all! I've been looking around the forum and searched quite a bit myself, but can't seem to find someone with a similar issue. We're experiencing emails with empty "senders" that do not show any senders in the tracking center. When receiving the email and inspecting it in the client, there...
  2. L

    improve header manipulation detection

    Hi, we are currently running proxmox mail gateway 6.4-4 and an exchange server 2019 fully patched. the patch for the hafnium exploit was installed as soon as possible. the proxylogon script for exchange did not find any vulnerabilities we recently received an email from an external sender that...