Hi All,

I am currently running OpenSMTPD on OpenBSD 6.5 GENERIC.MP#0 amd64

I am trying to "filter" connexions coming from hosts that don't have any rdns defined.
Such hosts appear as <unknown> in the logs.

I've tried the following without any results :

table bots {"NXDOMAIN", "\<unknown\>" , ".*unknown.*", "^$" }
match from rdns regex <bots> for any reject

but this rule never matches and hosts without rDNS are still able to send me mail :(

Any ideas ?



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