Hi group,

Could it be possible that spammers use the backup MX for their spam
(assuming anti-spam policies are not that strict on backup mailservers?)

I've noticed that because we recently changed our setup with a backup
mailserver, the messages dropped on the backup are all and only spam !!
The scenario was that (ex-)main is now backup.

For your advise, we changed DNS 2 weeks ago, so normally the change should
have been propagandated long time ago. Or do spammers cache their DNS
information more than 2 weeks?

TIA for your appreciated comments,
Frederik
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