[Dovecot] Hostname passed to PAM as rhost

[John Peacock]

Jethro R Binks wrote:
> However, your comments are probably correct in practice because those 
> implementing multiple hostnames -> single IP rarely put in the 
> corresponding multiple PTR records from the in-addr.arpa entry back to 
> each of the hostnames.

I said "in practice" and I meant it (I do know the RFC's in question). 
I'm not aware of any common application which supports multiple PTR 
records correctly, even if configured correctly at the DNS level.  It 
can even cause problems with authoritative DNS servers which return 
records in a random order (like tinydns), where the client library may 
receive a different in-addr.arpa answer every time it is run.

John

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John Peacock
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