On 16/01/2004, at 9:56 AM, Federico Baraldi wrote:

Hi all ... i found this lines inside my courier log:

Jan 15 18:25:33 localhost courieresmtpd: started,ip=[::ffff:213.209.214.65]
Jan 15 18:25:34 localhost courieresmtpd: error,relay=::ffff:213.209.214.65,from=<[EMAIL PROTECTED]>: 517-MX records for area.ra.it violate section 3.3.9 of RFC 1035.
Jan 15 18:25:34 localhost courieresmtpd: error,relay=::ffff:213.209.214.65,from=<[EMAIL PROTECTED]>: 517 Invalid domain, see <URL:ftp://ftp.isi.edu/in-notes/rfc1035.txt>

This is a problem with the domain, not the DNS lookup. A quick check gives me this:
[EMAIL PROTECTED] sitharus]$ host -t MX area.ra.it
area.ra.it mail is handled by 0 mail.area.ra.it.
area.ra.it mail is handled by 10 213.209.214.65.

This is WRONG. A MX record can only be a valid A name, NEVER a CNAME or IP address. Give 231.209.214.65 an A record, put that in there and courier will then send mail to it.

--
Phillip Hutchings
[EMAIL PROTECTED]
http://www.sitharus.com/

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