Arrogant RBL list maintainers

Michael Holstein michael.holstein at csuohio.edu
Wed Dec 9 13:48:28 CST 2009


> One could argue that you are *not* complying by using a generic PTR
> for a mail server. Some would say that a serious mail server should
> have proper DNS records, others will say that you should accept mail
> from any IP no matter what.

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.

Cheers,

Michael Holstein
Cleveland State University





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