example.com is one of the domains in my PMG. The mail server is hosted on WHM with Exim. The server does not have the mailbox unknown1@example.com. (this happens to multiple mailboxes on same domain).
How can I discard or reject emails sent to unknown1@example.com before DNSBL checks are performed, so we can avoid unnecessary queries to DNSBL providers? If we can't skip DNSBL, what is next to block ?
Is there a way to do this?
How can I discard or reject emails sent to unknown1@example.com before DNSBL checks are performed, so we can avoid unnecessary queries to DNSBL providers? If we can't skip DNSBL, what is next to block ?
Is there a way to do this?