SUMMARY: Sendmail 8.8.8 (or 8.8.8+Sun)

From: Stuart Little <>
Date: Tue Oct 30 2001 - 11:43:39 EST
Original post:-

>  Trying to retire a trusty 4.1.3_U1 server and replace it with an E250.
>  This machine has handled mail for us for about 15 years now but.....
>  The newer machine is Sol 2.6 and with either stock 8.8.8 sendmail or
>  the Sun provided patched version mail is delivered OK locally i.e. mail
>  sent on that machine either via sendmail or mail gets delivered to the 
>  /var/spool/mail/<user> directory.
>  Mail from other clients seems to disappear i.e. the syslog entires say it
>  has been accepted for delivery on the new machine, sendmail -v -q reports
>  the new mail as locked, I then get a delivered entry in syslog, nothing left
>  in /var/spool/mqueue but the mail has disappeared. I'm looking at 8.12
>  sendmail at the moment but since 8.8.8 worked OK on 4.1.3_U1 as a server and 
>  Sol 2.6 as client I wanted to proceed slowly rather than simply go for
>  the latest. So, anybody else seen this with 2.6? Can't experiment too much 
>  during the week as the newer server is in use for other things so had to
>  revert to the working configuration during Sunday.
>  Mail configuration is a basic mail hub, NFS mounted /var/spool/mail to 
>  unix clients. Apart from the single 4.1.3_U1 machine all other unix 
>  clients are Sol 2.6, patched pretty well up to date, with some PC 
>  clients using popper, but I didn't get that far.

OK, on second attempt I had gone to sendmail 8.11.6 with an m4 generated
cf file. Mail from clients upgraded to 8.11.6 with a client m4 generated
cf file worked OK, mail from 4.1.3_U1 and Sol 2.4 clients using 8.8.8 
still failed, so a better situation than first attempt.
I was getting the "config error: mail loops back to me (MX problem?)"
error message but couldn't see a problem with our DNS setup.

Final answer was a configuration problem, my original, touched as little as
possible, client cf files were setting $j to domainname, rather than 
host.domainname. Although OK with 8.8.8, 8.11.6 server barfed on this.

Kudos to 
           Neil W Rickert <>
for getting it spot on and thanks also

Gaziz Nugmanov <>
Rich Kulawiec <>
"Martin Carpenter" <>

Basically I have been modifying generated by-hand .cf files for 
server and clients some years now as and when our mail routing 
grew more complicated. This was the first time I had bothered to use m4 
generated cf files.
Since the error was reported as a config error from the hub server I was
misled into looking at MX config etc on the server rather than an error 
in my older client cf file. Should have learnt a lesson long ago that 
playing with sendmail configs by hand is _not_ the way to go.


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Received on Wed Oct 31 10:39:43 2001

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