[CentOS] Re: DKIM

Ralph Angenendt ra+centos at br-online.de
Thu Sep 25 11:15:16 UTC 2008


Craig White wrote:
> well it's not just yahoo as I know for certain that AOL also requires
> reverse DNS to match just like all the mail servers that I maintain also
> require matching reverse DNS.
> 
> Your problem - if you actually want to solve it instead of tossing the
> blame to others like yahoo is...
> 
> # host mail.creativeprogramdesigners.com
> mail.creativeprogramdesigners.com has address 72.35.68.58
> 
> # host 72.35.68.58
> 58.68.35.72.in-addr.arpa domain name pointer
> creativeprogramdesigners.com.
> 
> the forward doesn't match the reverse - it's that simple. Why not just
> fix it?

Because it is *NOT* needed. I have several machines which have lots of
A records for just one ip address. But only one name when I do a reverse
lookup. Anyone checking for that shouldn't be allowed to receive mail. 

Ralph
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
Url : http://lists.centos.org/pipermail/centos/attachments/20080925/6beba64a/attachment.bin


More information about the CentOS mailing list