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Re: Blocking mail from bad places
- From: Thomas Leavitt
- Date: Thu Apr 05 11:43:09 2007
One problem with the "bounce" solution is that for those of us with
multiple domains (some of them wildcarded) mapped to our mailboxes, the
volume of "backscatter" makes it a real hassle to sort out the valid
bounces from the "noise". Even users with a single email address can be
victimized often enough to dismiss this stuff as a form of "spam", and
automatically delete it without looking; \every few months, I get pained
complaints from one friend or family member or another about someone
using their address to spam, and thousands of bounce messages winding up
in their mailbox as a result... another major problem, in my opinion,
caused by spam that is leading to email becoming more and more of an
unreliable medium - even when everything works perfectly according to
protocol and RFC, and a person gets a bounce message because an address
is out of date or typoed or otherwise invalid, they'll never know.
Steven Champeon wrote:
on Wed, Apr 04, 2007 at 06:25:18PM -0400, John L wrote:
And for anyone else who doesn't feel like jumping through your hoops.
This technique works great to keep spam out of your mailbox.Inline rejection is a little dangerous for mailing lists
Providing a telephone number in the bounce is an effective way to dealOnly if you assume that everyone who writes to you is so desperate to send
you mail that they are willing to make what may be an international call
in the middle of the night. I have not found that to be a very realistic
with false positives.
I have to agree with John here - I've been sending back 'email me at
postmaster@... if this in an error' for all rejections here since 2003
or so, and can count the legit mail to postmaster I've received in that
time on one hand, maybe two; the stuff that gets rejected before the
accept postmaster default gets a different error, containing a phone
number. I've never had anyone call me there.
Not that it bothers me much - I've done my part, I figure, and if they
aren't willing to email a postmaster or call, then <shrug>? What can I
I'll add that even if everyone were willing to email/call with problems,
the hideous things that (e.g.) Exchange does to your carefully
handcrafted rejection errors are enough to cripple the least tech-savvy
of your likely audience, anyway.