How can I fix it!!!

Kevin Spicer kevins at BMRB.CO.UK
Thu Jan 8 23:45:11 GMT 2004

On Thu, 2004-01-08 at 23:25, Alexander Endl wrote:

>warning: mailer loop: best MX host for is

>this says mal warnlog!!!!

That rather depends on a) exactly what your problem is, b) what MTA you
are using.

Taking these points in turn...
Is your problem 1) affecting some mails leaving your networks, or...
2) all mails entering your network

if 1) then odds are its an external site with misconfigured DNS (some
spammers use MX records of to avoid getting bounces) - in this
case its outside your control.

if 2)    Set your Mailscanner server as secondary MX instead of primary
and ensure your primary MX is firewalled not to accept connections from
the outside world.  Or if you are using sendmail set up mailertable
entries for your local domains to bypass the DNS lookup. (I guess there
are similar techniques on other MTA's)

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