On 01/16/2014 12:52 PM, James Day wrote: > Hello Postfix User List, > > I have a mail server that I use to provide a smart host service for my > customers. I have a problem sending a message onto a recipient in the domain > cbhc.uk.com. The failure message is below. > > I'm struggling to work out why postfix is unable to forward this message when > there is a valid MX record. > > The error states that there is no A record for the domain name (which is > correct) but I would have thought Postfix should be looking for an MX record > as well.
There must be something wrong with one of your DNS servers. About half of the DNS requests for the mx record return NXDOMAIN (i.e., Non-Existent Domain). Kind regards, Martijn Brinkers -- DJIGZO email encryption
