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From: pdb@sei.cmu.edu (Patrick Barron)
Newsgroups: comp.unix.questions
Subject: Re: mail problem
Message-ID: <2965@aw.sei.cmu.edu>
Date: Fri, 23-Oct-87 03:20:23 EST
Article-I.D.: aw.2965
Posted: Fri Oct 23 03:20:23 1987
Date-Received: Sun, 25-Oct-87 15:11:02 EST
References: <9894@brl-adm.ARPA>
Sender: netnews@sei.cmu.edu
Reply-To: pdb@sei.cmu.edu (Pat Barron)
Organization: Carnegie-Mellon University, SEI, Pgh, Pa
Lines: 27

In article <9894@brl-adm.ARPA> sshurr%wellesley.edu@RELAY.CS.NET writes:
)I type either of the following:
)% mail 1stperson 2ndperson
)% mail 1stperson,2ndperson
)[...]
)1stperson or 2ndperson, upon reading the message, sees:
)
)To: 1stperson.2ndperson
)[...]
)So the question is, how can I prevent sendmail from sticking that dot
)in between the two addresses?  Our documentation of sendmail says under
)RESTRICTIONS:
)The sendmail command converts blanks in addresses to dots.  This is
)incorrect according to the old ARPANET mail protocol RFC733 (NIC41952)
)but is consistent with the new protocols (RFC822).

You want to set the "o" option in your sendmail.cf file.  This option
turns on a heuristic in sendmail which detects RFC733-style addresses
and converts them to RFC822-style addresses.

Sendmail doesn't get confused about who it's delivering the message
to because the address on the "To" line of the message doesn't control
delivery - the delivery address is passed in the message envelope.
In the case of /usr/ucb/Mail, this information is passed to sendmail
via the argv[] when Mail calls sendmail.

--Pat.