On August 20, 2015 4:10:36 PM hospice admin <hospice...@outlook.com> wrote:

Does anyone have a better suggestion?

senders block dns to there spammin domain, so setup sendmail to defer spammail that have dns blocked on sender domains, then bastards will let you get dns results very fast :)

note i do not use mimedefand here, but i only suggest to not accept mails into sendmail queue that cant resolve dns in mimedefang

do you use bind9 ?

then toogle querylog in rndc, and check named logs

rndc querylog
grep example.net /path/to/logfile

do you see lame-servers results ?, or timeout results ?, this is a big hint to resolve it

after bug is found run rndc querylog to stop logging again

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