Re: spamhaus
  By: Alexey Vissarionov to Eric Renfro on Sun Sep 13 2015 12:22 pm

 AV> Good ${greeting_time}, Eric!

 AV> 12 Sep 2015 18:04:08, you wrote to Kees van Eeten:

 AV>>>> No: blacklisting the IP networks is the only effective way to
 AV>>>> fight spam.
 KV>>> I agree with all your methods. At a later stage I added
 KV>>> Greylisting, that seems quite effective when the messages originate
 KV>>> directly from a spambot. These bots, have no memory for temporary
 KV>>> rejects, a real mail server will try again later, with the same
 KV>>> message. 
 ER>> While that used to be true. most spambots these days have their own
 ER>> queues

 AV> Never seen that.

I have. 

 ER>> or defer themselves to send through another mail server that does
 ER>> have a retry queue.

 AV> Yes, that's the most common scenario.

That, or using services like SendGrid. heh

 ER>> Greylist filtering, thus, has become something that is no longer a
 ER>> useful thing more so than other methods.

 AV> At least 5 years ago.

 ER>> My system, in overall, utilizes postfix with postscreen, various
 ER>> reliable RBLs,

 AV> DNSBLs - as MAPS RBL was a private name, and DNSBL is common.

 ER>> dspamd with dovecot using the antispam plugin to train spam/ham
 ER>> messages. With the few spam that still gets through, continued
 ER>> manual training has almost completely eliminated my spam issues,

 AV> [sarcasm]
 AV> My congratulations: using the content-based filtering you are confirming
 AV> that your addresses are alive and can be spammed.
 AV> [/sarcasm]

Pardon? How does this "confirm" when the only thing it does is accepts the
mail, filters after-the-fact, and to "train", I just move it to the IMAP Junk
folder. To train it as good, moving it from the Junk folder to another other
than the Trash will retrain it as good. 

 ER>> far more so than Google's Gmail has been able to do.

 AV> Gmail is for idiots who don't care neither of their own privacy (well,
 AV> that's their choice), nor of the privacy of other people they are sending
 AV> messages to and receiving from (which is next to a crime).

Oh, you're one of those people... *shakes head and sighs*

)))[Psi-Jack -//- Decker]
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