On 03/21/2012 12:31 PM, Mark S wrote:
I wanted to keep it as simple as possible, so I decided to ditch
the numerous options that can be used for spam detection based on
SMTP protocol quirks (EHLO etc.) I think those spam sender will get
filtered lateron by postgray and zen.spamhaus.org anyway. (If there
is something I can do better in this regard, just say so!)
I don't bother with greylisting for many years. I think it is more
pain than it is worth.
ok. I will think about greylisting one more time.
But to confuse the issue with a different opinion...
We have found greylisting to be very useful. The downside is that a very
small number of messages are briefly delayed but it has required
near-zero maintenance and blocks a substantial portion of spam. When we
originally installed it our spam dropped by 98-99% Some spammers adapted
so it isn't that high, now, but still high enough to warrant use.
Cheers,
Steve
