From: dave@horsfall.org (Dave Horsfall)
Subject: [TUHS] Who is running their own mail server and what do you run?
Date: Thu, 21 Sep 2017 14:14:32 +1000 (EST) [thread overview]
Message-ID: <alpine.BSF.2.21.1709211348380.89458@aneurin.horsfall.org> (raw)
In-Reply-To: <c828e69a-8fa1-ac14-ce62-920e7b4a9dfd@tnetconsulting.net>
On Wed, 20 Sep 2017, Grant Taylor wrote:
Didn't I just see you somewhere else? :-)
> I've never thought about a long, multi-line banner.
Yep; as I recall, the RFC line length is no more than 254 chars (I think),
with no limit on the number of continuation lines. Try connecting to my
server at horsfall.org (I'll make you wait around 10 seconds), then check
out my RFC-compliant banner... I'll keep an eye out for you in my logs
:-)
> I agree with the first two, and I'd like to know more about the
> effectiveness of the third.
Check out www.horsfall.org/spamlog.pdf for a nice pretty graph; the
rejects on "banner" is the purple one on the top; the "reject" line is the
red one, and the "spam" line (stuff that gets through) is pink (for SPAM,
geddit?).
Note that many of the "banner" violations are from woodpeckers i.e. they
keep trying until they either give up or I notice (and firewall them).
The tools behind this are still a work in progress, so I don't currently
log the number of "wait" violations etc (it was implemented fairly
recently).
(And yes, my HTML programming sucks.)
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer."
next prev parent reply other threads:[~2017-09-21 4:14 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 [this message]
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
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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