Re: SMTP-proxy

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Generally, POP3 & IMAP4 are thought of as "receiving protocols" because
you're fetching messages from a mailbox for a particular recipient, and SMTP
thought of as a "sending protocol" - all from an end-user/client software
perspective. While those are sufficient explanations for most end-users,
it's best to get out of that mindset when working with SMTP and writing
software that uses it.

SMTP is transport protocol - a message sent by a SMTP client (regardless of
whether it's a server or a client in terms of opeating systems & software
used, it's referred to as a SMTP client in SMTP terms) is received by a SMTP
server.

These may help:

- Simple Mail Transfer Protocol (RFC 2821)
http://www.faqs.org/rfcs/rfc2821.html

and:
- Internet Message Format (RFC 2822)
http://www.faqs.org/rfcs/rfc2822.html
- SMTP Service Extensions (RFC 1649)
http://www.rfc-editor.org/rfc/rfc1869.txt
- Representation of Non-ASCII Text in Internet Message Headers (RFC 1342)
http://www.faqs.org/rfcs/rfc1342.html
- MIME (RFC 1341)
http://www.faqs.org/rfcs/rfc1341.html
--
Bharat Suneja
MVP - Exchange
www.zenprise.com
NEW blog location:
exchangepedia.com/blog
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"John" <godles2@xxxxxxxxx> wrote in message
news:ev62g3$53h$1@xxxxxxxxxxxxxxxxxxxxxx
Hi,
I'm about to write an SMTP proxy server which should "effectively" get rid
of spam. Can anyone tell me how it is gonna work.? I know that SMTP is a
protocol used for outgoing messages, so how can it protect from receiving
SPAM.
I will be really gratefull if anyone explain the mechanism of the proxy
SMTP.

Thanks in advance
J.G



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