Hi
are there some data which value is acceptable for
"postscreen_greet_wait" to not end in legit SMTP servers give up and try
again later?
we see a massive botnet starting with around Dec/27 and daily deliveriy
attempts rasied from 5000 to 50000 - previously i had 10 seconds and 3
in case of stress - after raise it for testing to 20 seconds i see *a
lot * more HANGUP logmessages and so that connections ends in no success
even if they would pass RBL's if the only would wait
cat maillog | grep HANGUP | grep "Jan 7" | wc -l
9883
cat maillog | grep HANGUP | grep "Jan 7 22" | wc -l
599
