OT: "Nolisting"

Scott Silva ssilva at sgvwater.com
Tue May 27 16:23:42 IST 2008

on 5-27-2008 5:26 AM Paul Welsh spake the following:
> Hi all
> I have read that one way of blocking spam is to use a lowest priority MX
> record that points to a host that doesn't respond to SMTP requests.  I've
> seen this idea coined as "nolisting".
> The idea is to block the many spammers who target the lowest priority MX,
> eg, the one with priority 90 rather than 10 as a way of trying to circumvent
> anti-spam measures.  If the MX with the lowest priority doesn't respond then
> the spammer doesn't try the higher priority MX but just moves on to the next
> victim.
> Any thoughts on this idea?
> Personally, I can see how it would block a percentage of spam but whether
> that percentage is high enough to make it a worthwhile idea is open to
> question.
> Regards
> Paul
> ________________________________________________
> Message sent using UebiMiau 2.7.9
There is even a service that will host your tarpit for you.

MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 258 bytes
Desc: OpenPGP digital signature
Url : http://lists.mailscanner.info/pipermail/mailscanner/attachments/20080527/fe3500c2/signature.bin

More information about the MailScanner mailing list