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Re: 2.99.50(snap4) now at ftp.funet.fi (was: Re: Spam help.)
On Mon, 25 May 1998, Alvin Starr wrote:
> Is it safe to assume that No valid Email source will be sending mail from
> a non resolved address?
No. In fact, it is not uncommon to receive mail from a host whose
nameserver is unreachable or slow to respond, leading to your inability to
perform a reverse lookup...