Am 10.02.2018 um 05:11 schrieb John Levine:
But to answer your question, off-hand, I'd say that any TTL under 60s is =
suspicious and any TTL under 10s is almost certainly intentionally =

I hope you're not planning to do much spam filtering

i do for years with a min-ttl of 90 secods and you will have a hard-time to beat our results - using a mix of many DNSBL/DNSWL on postsrceen as well as SpamAssasin does the trick and not ordianry low TTL's
Please visit to unsubscribe 
from this list

bind-users mailing list

Reply via email to