[TriLUG] Another seal broken... thinking of installing a C/R anti-spam system

[Dave Sorenson]

None.  Everyone I know with a g-mail account gets through just fine.
AOHell, mindspring, earthlink, hotmail, and yahoo all come through just
fine. The only ones I never hear from are the zombfied winders spambots.

If I do run into a problem I can add the problem MTA domain to the
whitelist and messages will not be delayed. Any spam should get flagged by
SpamAssassin. However like I said I have not had to whitelist anything
yet.

YMMV, butu I'm very happy with greylist performance.

Dave


> Dave Sorenson wrote:
>> I've recently implemented Grey listing and I'm totally impressed. I'm
>> dropping 300+ messages a day that don't try back after being told to try
>> back in 30 seconds. The very few that do get through Spamassassin swats.
>> I have my inbox back!
>
> How many of those dropped emails are originating from GMail? Yahoo?
>
> This is something I noticed right off with greylisting is that some of
> the really big free mailbox providers were "broken" by greylisting.
> Whitelisting those domains got around the problem, but how many legit
> senders might I be missing?
>
> For greylisting to work effectively, I think the MTA's would need to set
> an affinity between an outbound mail in the queue and a member of its
> outbound SMTP server farm.  Otherwise, a recipient MTA with greylisting
> enabled might perpetually delay delivery.  I don't really see the big
> guys chomping at the bit to do this.
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