Net Qmail: DNSStuff Warning - mail.domain.com claims to be..

[basicasm]

The warning is comming from www.dnsstuff.com during the MX tests. The warning states that mail.mrblast.com claims to be host mail.domain.com [but A lookup times out]: 220 mail.domain.com ESMTP. Prior to this warning the message was "mail.domain.com claims to be host mail.domain.com [but A lookup times out]: 220 mail.domain.com ESMTP". I edited the following files and changed domain.com to mail.domain.com :

/var/qmail/control/me
/var/qmail/control/locals
/var/qmail/control/plusdomain
/var/qmail/control/defaultdomain

That resolved the mail.domain.com claiming to be domain.com problem. But still I have a warning and this is what I have in my zone file for this domain.

$TTL 1D
@ IN SOA ns1.nameserver.net. webmaster.domain.com. (
2007101603 ; serial, today date + todays serial #
8H ; refresh, seconds
2H ; retry, seconds
4W ; expire, seconds
1D ) ; minimum, seconds
;
@ IN NS ns1.nameserver.net. ; Inet Address of name server
@ IN NS ns2.nameserver.net. ; Inet Address of name server
@ IN MX 10 mail.domain.com. ; Primary Mail Exchanger
;
@ IN A 'ip of webserver/mailserver'
ns1 IN A 'ip of name server 1'
ns2 IN A 'ip of name server 2'
mail IN A 'ip of webserver/mailserver'
www IN A 'ip of weserver/mailserver'


I'm not sure what I actually need to do or if I am missing something. Any help is greatly appreciated.[/bug]