Date: Tue, 20 Apr 2010 09:00:43 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: perryh@pluto.rain.com Cc: postmaster@freebsd.org, smithi@nimnet.asn.au, freebsd-questions@freebsd.org Subject: Re: [SPURIOUS] Delivery Status Notification(Failure) (fwd) Message-ID: <4BCD5F2B.4050705@infracaninophile.co.uk> In-Reply-To: <4bcd52f8.05g7tnWntHqFWB7u%perryh@pluto.rain.com> References: <20100420154455.G14495@sola.nimnet.asn.au> <4bcd52f8.05g7tnWntHqFWB7u%perryh@pluto.rain.com>
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On 20/04/2010 08:08:40, perryh@pluto.rain.com wrote:
> Ian Smith <smithi@nimnet.asn.au> wrote:
>
>> Has anyone (everyone?) else been receiving these DSNs a week or so
>> after having posted to freebsd-questions@ ? Since around early
>> April?
>>
>> I've had four such in the last three days ...
>>
>> If it's 'just me' I can block their source, but if more widespread
>> I'll ask our esteemed postmaster (cc'd) to try hunting the errant
>> recipient.
>>
>> cheers, Ian
>>
>> ---------- Forwarded message ----------
> <snip headers>
>> Your message:
>> To: twelcome@mobileemail.vodafonesa.co.za
>> Subject: Re: reliable rs-232
>> Sent Date: 25:05 +0000
>> has not been delivered to the recipient's BlackBerry Handheld.
>
> Now that you mention it, yes. A posting to "freebsd-questions@"
> about 01:00 (US Pacific) on Apr 06 did not get one of those, but
> one about 01:10 on Apr 08 and three (one about 01:00, two about
> 19:10) on Apr 09 did. The first notice turned up at 20:16 Apr 16,
> and the other three between 20:13 and 20:15 on Apr 17. All four
> specify the same recipient address as yours.
I've seen exactly one bounco like this -- but only after grepping
through lots of mail logs and my junk folder. One bounce is bad enough
if it goes back to the whole list -- but that could be excused as a
momentary aberration. Any more than that is grounds for reporting the
message to postmaster@freebsd.org and having the sender blacklisted:
anyone that configures a mail server to send error notifications to an
entire mailing list needs a) to spend some quality time studying the
SMTP RFCs and b) to step away from the keyboard /now/ as they are
clearly not competent to run a mail server on the Internet.
Thoroughly recommend using relaydb(1) to teach your mail system where
you've received spam from in the past and make sure it doesn't happen
again. I've a cron job that processes the contents of my Junk
mailfolder through relaydb on a daily basis.
Cheers,
Matthew
- --
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
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