Non-delivery of email sent by automated services to altlinux.org
Quite often automated user verification emails (from other wikis, forums, services, etc.) don't pass through to my altlinux mailbox (@altlinux.org). One such case has been investigated and the reason was:
altlinux.org appears to be doing sender-callback-verification... the apache@mozilla.org address indeed appears to be missing now. It used to exist (exactly for this reason) so I'm not sure what happened to it. I just put it back.
For administrators of external services that send automated emails:
If the users from altlinux.org have problems with receiving the messages, please make your service even better: make sure your service has everything to pass this "sender-callback-verification"!