On 13/11/2003 at 10:26:19, Mike Biddle wrote:

> When a create a new domain unfiltered.websiteworld.com on IP 216.23.168.147
> other email started going through it that is not supposed to.

> My email for [EMAIL PROTECTED] is supposed to go through
> mail.websiteworld.com 216.23.168.145 and does UNLESS I add the above, then
> it started going through unfiltered. See below

[snip]

> Any suggestions? I've checked DNS entries etc.

websiteworld.com.       3600    IN      MX      10 unfiltered.websiteworld.com.
websiteworld.com.       3600    IN      MX      100 mail.websiteworld.com.
websiteworld.com.       3600    IN      MX      10 mail.websiteworld.com.
websiteworld.com.       3600    IN      MX      10 filtered.websiteworld.com.

mail.websiteworld.com.  3600    IN      A       216.23.168.145
filtered.websiteworld.com. 3600 IN      A       216.23.168.146
unfiltered.websiteworld.com. 3600 IN    A       216.23.168.147

mail, filtered and unfiltered are all listed as equal-preference MXs for
websiteworld.com. That means anyone sending to websiteworld.com will
pick one of those at random to try first - in this case it was
unfiltered.

You should note that even if you do meddle with the priorities, spammers
often try not-best-preference MXs deliberately, in the (often correct)
assumption that backup servers have less rigorous spam protection. If
you don't want mail to [EMAIL PROTECTED] going through
unfiltered.websiteworld.com, it shouldn't be listed as an MX at all.

Cheers,
Evan


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