All Mexico All
For several days now, I have been seeing messages like this in my logcheck output:
Jun 27 19:24:07 maestro postfix/smtpd: warning: malformed domain name in resource data of MX record for neolookups.com: *.mx.*
Obviously, the MX entry for the domain “neolookups.com” (and all its subdomains, apparently) is “0 *.mx.*”.
It turns out that you cannot search for “*.mx.*” on Google, so I ask you, dear Lazyweb, is this one of the latest tricks spammers use to try and thwart antispam countermeasures?