Howard Schwartz <[EMAIL PROTECTED]> wrote on 3 Feb 2001 02:54:10 -0800:
>My corporate ISP just installed what the level-1 techs call a ``spam
>filter'' for the SMTP mail server.
> [...]
>I do not know too much about SMTP authentication, [...]
The SMTP core specification does not contain any AUTH command
even in its newest version. There is only an optional SMTP
extension from March 1999 with an _optional_ AUTH cmd. The
details for this can be found in RFC 2554, "SMTP Service
Extension for Authentication", but so far it has not been widely
implemented yet (independent of operating systems).
The usual "spam filter" used by most ISPs is a simpler way called
"POP before SMTP": You first have to fetch your mail from your
POP account (specifying your user id and password), and
immediately afterwards send your outgoing mail to the SMTP host
of your ISP.
This way of authentication is widely used meanwhile and supported
by many mail clients.
So, check if your mail client supports "POP before SMTP", and
most probably, that alone should do it.
- Wolfgang Redtenbacher
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