Ken Smith wrote: > Hi All, > > I'm just wanting to check that my understanding of the settings is > correct as my web searches are finding a lot of dated information. > > If I want a Centos 6 sendmail system act as the secondary MX for > domain bbbbb.co.uk do I just add a > > Connect:bbbbb.co.uk RELAY > > statement into /etc/mail/access and restart sendmail > > Obviously I have the DNS MX records for the domain are already > established. > > I've been getting "/config error/: /mail loops back to me/ " errors. > > I think I may be stumbling into a variant of cname problem where the > hostname as far as the sendmail machine is concerned is aaaaa.com but > the DNS setting for the secondary MX is smtp1.bbbbb.co.uk. > > They both resolve to the same IP but when sendmail looks up the MX > records for bbbbb.co.uk it will find smtp.bbbbb.co.uk and > smtp1.bbbbb.co.uk listed and it may relay the mail off to > smtp1.bbbbb.co.uk without recognising that aaaaa.com = > smtp1.bbbbb.co.uk. Am I on the right track here, as I then just need > to change the secondary MX setting in DNS to aaaaa.com? > > Many thanks > > Ken > > > I've changed the secondary MX record for the domain and I'll see if the problem goes away. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.