Jeff Koch wrote:
Ocassionally good email is bounced back from our server with the message ' 451 DNS temporary failure (#4.3.0) ' - I'm wondering if this is related to either the mfcheck patch or another patch. Has anyone else seen this message? Can you explain what it is and how to prevent the problem?
I'd have to double check the patch, but as I recall, that's when dns queries time out rather than an nxdomain response.
Regards,
Bill
