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In article <46husv$j1@news.magi.com>, Carlos <jello@magi.com> wrote:
>I'm trying to find out what kind of punctuation is used to enclose the full
>To: line when it is sent from a mail client (I use Eudora) to the service
>provider.

The user agent, in this case Eudora, is responsible for extracting
the "live" part of the recipients' addresses from the message
header.  (In terms of the RFC 822 grammar, page 27, the "live" part
of an address is the "addr-spec" of a "simple address", or the
"route-addr" part of a "name & addr-spec".)

If the user agent is using SMTP for message submission (as Eudora
does), it then presents each address in a separate RCPT command
during the SMTP transaction.  (If it's not using SMTP, then it will
communicate the addresses in some other way, for example by putting
them on the sendmail command line.)

For example, a message header like this...

    To: fred@here.com
    CC: Mary Smith <mary@there.edu>, wbrown@everywhere.gov (Bill Brown),
        Managers: <@mine.mil:big@yours.mil>, bigger@ours.org;

would result in the following commands being issued during the SMTP
transaction (not necessarily in this order)...

    RCPT TO:<fred@here.com>
    RCPT TO:<mary@there.edu>
    RCPT TO:<wbrown@everywhere.gov>
    RCPT TO:<@mine.mil:big@yours.mil>
    RCPT TO:<bigger@ours.org>

Tim.

Original headers:

From: tim@pipex.net (Tim Goodwin)
Newsgroups: comp.os.ms-windows.apps.winsock.mail,comp.mail.headers
Subject: Re: Mail (SLIP) clients sending full name + email address
Date: 25 Oct 1995 13:09:37 GMT
Organization: Unipalm PIPEX
Message-ID: <46lcuh$p4i@wave.news>
References: <46husv$j1@news.magi.com>

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