Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpfcso!hpfclp!diamant
From: diamant@hpfclp.SDE.HP.COM (John Diamant)
Newsgroups: comp.mail.sendmail
Subject: Re: another sendmail problem
Message-ID: <1410013@hpfclp.SDE.HP.COM>
Date: 3 Sep 89 01:25:34 GMT
References: <583@i2unix.UUCP>
Organization: HP SESD, Fort Collins, CO
Lines: 30

> I configured sendmail.cf in such a way an address as:
> 	user@host.domain
> is routed, via uucp, to the backbone.
> 
> The mail is correctly delivered to the backbone site BUT each user
> receives back his/her mail with:
> 
> ----- Transcription of session follows ------
> 554 No ! in UUCP! (paola@hp.UNIMI.IT)
> 
> How could I avoid this annoying thing?

The message occurs because the From_ line can't be correctly generated
without a "!" (since it is a UUCP header and expecting UUCP syntax).
If your environment (those machines you talk to with UUCP) doesn't need
From_ lines (note that means "From" followed by the space character,
as opposed to "From:" lines, which should be just fine), you should
be able to remove the "U" mailer flag which will stop it from attempting
to generate that header.

Whether you need this header or not depends on how return addresses in
replies are generated by the remote computers.  

Good luck,


John Diamant
Software Engineering Systems Division
Hewlett-Packard Co.		Internet: diamant@hpfclp.sde.hp.com
Fort Collins, CO		    UUCP: {hplabs,hpfcla}!hpfclp!diamant