Hello, On Saturday, November 16, 2002, at 04:12 AM, Bill Cole wrote:
At 9:20 AM -0800 11/15/02, Roger Corbin imposed structure on a stream of electrons, yielding:
[snip]
What is the proper way to check that your server has a proper ptr record? I want to make sure that my server is setup as properly as possible.
That is definitely odd.
It looks like the folks running that mail server have something in particular against you. Your mail server's address does not seem to be in any blacklist used by the sane, just in XBL for being downstream of Telus.
I wonder if it might not be because the reverse DNS for your mail server'
s IP address is bad? It seems to be returning a CNAME instead of a PTR, and the name in that CNAME does not resolve. That is wrong 2 ways. It should yield a PTR record pointing at a name that resolves, preferably back to the same IP.
Some mail servers these days reject connections from IP addresses without reverse DNS or without reverse DNS that seems 'proper' for various definitions of 'proper.' Arguably your IP address has no reverse DNS because it does not have a PTR record, and even if one accepts the CNAME record as an adequate alternative, the name provided in any CNAME should always resolve to an address.
-- Bill Cole [EMAIL PROTECTED]
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