I use rbl lists from zen.spamhaus.org and dnsbl.sorbs.net on postfix . I DUHL these lists, after I had to delete my IP from DUHL from these databases, and in spamhaus a simpler, more thoughtful and quick removal system than in sorbs .

There were questions, but do I need both of these lists?

Doesn't the search for both slow down the receipt / sending of mail and how to check it in postfix ?

Do they not use lists of the same addresses, and if the list is to choose one of them, and if so, which one and why?

Which are faster, which are more reliable?

From personal experience, can you offer your faster and / or reliable lists?

    1 answer 1

    sorbs marks Google 's servers as spam servers. https://productforums.google.com/forum/#!topic/gmail/HruhcLvodkY The problem since 2005 has been discussed on the forum 3.5 years ago and judging by my logs, there is still now. So I absolutely do not recommend using any rbl lists from sorbs.net

    A single generic rbl is quite enough zen.spamhaus.org