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Posted by mp- on 12/29/07 00:53
On Dec 28, 5:56 pm, Iván Sánchez Ortega <ivansanchez-...@rroba-
escomposlinux.-.punto.-.org> wrote:
> The Natural Philosopher wrote:
> > take the domain part of their address and try looking for MX, then A
> > records..and hope their ISP doesn't have a relay in the way..
>
> ... And do a port scan on pop3.domain, and imap.domain, and do keep a
> whitelist of known domains and servers (together with a manual way of
> adding a domain+server to that whitelist).
>
> --
> ----------------------------------
> Iván Sánchez Ortega -ivansanchez-algarroba-escomposlinux-punto-org-
>
> Why was God able to create the universe in only seven days? Because he
> didn't have an installed base to deal with.
Doing a port scan on imap.domain.com, pop.domain.com, etc.. just seems
like taking an educated guess as to what the IMAP/POP3 server name
is.
Does a DNS record exist describing the hostname for a particular
domains IMAP/POP3 servers? It seems that the MX record is only for
SMTP - which doesn't necessarily mean IMAP/POP3 is on that same
machine.
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