Arrogant RBL list maintainers

Seth Mattinen sethm at rollernet.us
Wed Dec 9 20:06:48 UTC 2009


Michael Holstein wrote:
> No, we do have it correct .. they wanted us to fix all the *other* ones
> (that can't even send mail because they're firewalled from doing so) ..
> 
> $ dig -t mx csuohio.edu
> [..]
> ;; ANSWER SECTION:
> csuohio.edu.        10800    IN    MX    10 antispam5.csuohio.edu.
> csuohio.edu.        10800    IN    MX    10 antispam4.csuohio.edu.
> csuohio.edu.        10800    IN    MX    10 antispam3.csuohio.edu.
> csuohio.edu.        10800    IN    MX    10 antispam2.csuohio.edu.
> [..]
> ;; ADDITIONAL SECTION:
> antispam5.csuohio.edu.    10800    IN    A    137.148.19.13
> antispam4.csuohio.edu.    10800    IN    A    137.148.18.13
> antispam3.csuohio.edu.    10800    IN    A    137.148.18.21
> antispam2.csuohio.edu.    10800    IN    A    137.148.19.12
> 
> (and)
> 
> 13.19.148.137.in-addr.arpa domain name pointer antispam5.csuohio.edu.
> 13.18.148.137.in-addr.arpa domain name pointer antispam4.csuohio.edu.
> 21.18.148.137.in-addr.arpa domain name pointer antispam3.csuohio.edu.
> 12.19.148.137.in-addr.arpa domain name pointer antispam2.csuohio.edu.
> 

Ah, I must have misread. Yeah that's pretty much the accepted way to do 
DNS for mail servers.

~Seth




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