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From: I355@VMT.SCP.AC.UK ("Roderick Douglas")
Newsgroups: mail.uk-sendmail-workers,comp.mail.sendmail
Subject: 'no host' problem
Message-ID: <31?Aug?90?17:45:25?BST?I355@UK.AC.SCP.VMT>
Date: 31 Aug 90 16:45:25 GMT
Sender: daemon@cs.glasgow.ac.uk
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Approved: usenet@cs.glasgow.ac.uk

Dear all,
 Sheffield Poly has been trying to use uk-sendmail to get
a sun to relay SMTP mail from an apollo to JANET.
 
We're using uk-sendmail to generate the config files for sendmail
on both the apollo and the sun. We've got the sun working on
the Janet channel, but cannot get any traffic between the apollos
and the sun on the TCP channel.
 
Both sides seem to perform the 'make test' ok, but running sendmail
generates an error:
554 buildaddr: no host
 
Both sides have each others names in the /etc/hosts file, and telnet
and ftp work happily both ways. Routing is done through an Apollo
fitted with both Ethernet and Apollo token ring cards.
 
Where are we going wrong?
 
Also, I cannot work out what the difference is between the
ether channel and the TCP channel. I've got nothing on the ether
channel file, because it seemed more sensible to use the TCP channel
as we are routing between ethernet and token ring.
 
Was this a sensible choice?
 
Any help will be greatly appreciated.
 
Thanks,
 
 
Roderick Douglas                   Telephone: (0742) 533829
Janet Site Representative          Fax      : (0742) 721502
Computer Services Department       JANET E-Mail : I355 @ UK.AC.SCP.VMT
Sheffield City Polytechnic
Pond Street
Sheffield
S1 1WB