[comp.mail.sendmail] Need help with SMTP error

ericf@zurich.ai.mit.edu (Eric Feigenson) (09/28/90)

I've been hacking on sendmail.cf's recently to try to get our Usenet
connection into some sort or order.  We have one machine running Intel
Unix which is to be our mail server to a machine on the Internet.  We
want to send messages that look like they're coming from
"name@ourdomain" instead of "gateway!ourdomain!name", where "gateway
is the name of the machine (its UUCP name) our mail server sends to,
"ourdomain" is the name of our mail server machine, and "name" is a
user name.  The server machine should look like its the entire domain
(progress.COM) while workstations should look like their inside the
domain (ericf.progress.COM).  I hacked the sendmail.cf to do this.
Mail goes from a workstation to the server and is queued to go to our
gateway machine via UUCP.  This seems to work fine, and the mail finds
its way to its destination.  HOWEVER, I *also* get returned mail which
says:
	554 No ! in UUCP! (erf@ericf.progress.COM)

Why does it say this?  How does sendmail *know* that UUCP is involved?
Why does it demand a "!"?  Is this message coming from sendmail?
Other than this message, everything looks just fine.

Please mail responses;  I'll summarize if anyone is interested.

Thanks in advance!

-Eric Feigenson
ericf@zurich.ai.mit.edu
OR: erf@progress.com (this is the machine I'm trying to get working,
but it does seem to receive mail OK... so far...)