From: bakul@bitblocks.com (Bakul Shah)
Subject: [TUHS] Who is running their own mail server and what do you run?
Date: Wed, 20 Sep 2017 16:57:13 -0700 [thread overview]
Message-ID: <20170920235713.1BED6156E523@mail.bitblocks.com> (raw)
In-Reply-To: Your message of "Wed, 20 Sep 2017 23:54:34 +0100." <1274eb5fe2051d0052af14155ba75a0a@quintile.net>
What is needed is an SMTP "Brita" filter!
crud+legit email => smtp filter => legit email
This then goes to your usual MTA. Steve, this may be
the killer app for plan9!
On Wed, 20 Sep 2017 23:54:34 +0100 "Steve Simon" <steve at quintile.net> wrote:
"Steve Simon" writes:
> My spam filtering is all plan9 based but the ideals are all portable.
>
> Greylisting and delaying a few secs before starting the SMTP
> conversation are my most successful filters, After this comes
> SPF and using spamhaus to validate the senders IP.
>
> I reject some silly domains like localhost.com and usernames like
> user and test.
>
> I also have a list of regexps which match the reverse dns
> addresses of adsl blocks which catch many spam bots.
>
> The regexps sound like a lot of work but I have some scripts to
> analyse my logs and suggest patterns, so its just a click or two
> I can block somthing like:
>
> dhcp.[0-9]+.[0-9]+.[0-9]+.[0-9]+.adsl.nasty-isp.net
>
> -Steve
next prev parent reply other threads:[~2017-09-20 23:57 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-20 16:25 Larry McVoy
2017-09-20 16:39 ` Jon Steinhart
2017-09-20 19:59 ` Bakul Shah
2017-09-20 21:26 ` Jon Steinhart
2017-09-20 23:17 ` Robert Brockway
2017-09-21 0:00 ` Dave Horsfall
2017-09-21 0:08 ` Grant Taylor
2017-09-21 0:55 ` Dave Horsfall
2017-09-21 1:52 ` Grant Taylor
2017-09-21 4:14 ` Dave Horsfall
2017-09-21 5:30 ` Grant Taylor
2017-09-21 15:43 ` Ian Zimmerman
2017-09-21 0:38 ` Robert Brockway
2017-09-21 1:30 ` Lawrence Stewart
2017-09-21 1:57 ` Grant Taylor
2017-09-21 3:04 ` Robert Brockway
2017-09-21 5:20 ` Grant Taylor
[not found] ` <20170921042528.E12C5156E523@mail.bitblocks.com>
2017-09-21 4:45 ` Robert Brockway
2017-09-21 4:58 ` Dave Horsfall
2017-09-21 5:34 ` Grant Taylor
2017-09-21 15:49 ` Ian Zimmerman
2017-09-20 16:46 ` Warner Losh
2017-09-20 17:01 ` Steve Nickolas
2017-09-20 17:39 ` Henry Bent
2017-09-20 22:54 ` Greg 'groggy' Lehey
2017-09-20 16:59 ` Kurt H Maier
2017-09-20 17:10 ` Arthur Krewat
2017-09-20 17:14 ` Jon Steinhart
2017-09-20 18:15 ` Arthur Krewat
2017-09-20 23:45 ` Dave Horsfall
2017-09-20 22:54 ` Steve Simon
2017-09-20 23:31 ` Grant Taylor
2017-09-20 23:57 ` Bakul Shah [this message]
2017-09-21 0:02 ` Larry McVoy
2017-09-21 1:08 ` Ian Zimmerman
2017-09-21 12:36 ` Steve Simon
2017-09-20 17:47 ` Clem Cole
2017-09-20 17:54 ` Rico Pajarola
2017-09-20 17:57 ` Ian Zimmerman
2017-09-20 18:22 ` William Pechter
2017-09-20 19:11 ` Grant Taylor
2017-09-20 19:25 ` Ian Zimmerman
2017-09-20 19:54 ` William Pechter
2017-09-20 19:09 ` Grant Taylor
2017-09-20 23:26 ` Michael Parson
2017-09-20 18:21 ` Grant Taylor
2017-09-20 18:51 ` Corey Lindsly
2017-09-20 20:13 ` jason-tuhs
2017-09-20 22:25 ` Theodore Ts'o
2017-09-20 23:06 ` Dave Horsfall
2017-09-21 12:40 ` Ben Greenfield
2017-09-23 9:12 ` Dario Niedermann
2017-09-21 20:05 Norman Wilson
2017-09-21 21:02 ` Grant Taylor
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