Odd 4.4.1 deferral problem

[MylesFromOz]

I have several qmail servers each with their own domains.

Server 1 can send and receive qmail email to 'the world'.
Server 2 can send and receive qmail email to 'the world' also

There is one 'odd' exception. Server 1 always defers with a 4.4.1 went sending to Server 2 but it can send to every other domain in the world. Server 2 can send to Server 1.

/etc/tcp.smtp is fine on both and both domains are properly MX'd. qmailscanner is disabled on both.

Has anyone any idea why one qmail smtp server would always defer with a 4.4.1 but only when sending to a particular server. Incidently the server it is trying to send to has two valid domains and it can't send to either domain...

Many thanks in advance

 

[MylesFromOz]

Thanks everyone.... no need to reply.

An idiot I know stuffed up a dns record. Problem solved.



Many thanks