[rwcanary]

We have a client that has a source(sender), which when that source sends our client an email it never gets to the client. !Because!, the source (the sender) has a screwed up mail server setup and it answers with the hello of "beetle", which doesn't resolve to anything.

Question: How can I tell Zimbra to make an exception for this non-reversing name, without disabling the the "non-resolving" filter globally. The white list function only trains the amavis filters, but this issue is at the MTA level.