AOL problems

[Colin Jack]

We are having problems with AOL not allowing email because the reverse
lookup fails. The problem is that it is failing it on the wrong address
... let me explain ;)

Our users relay mail off our server server1.mainline.co.uk
(212.21.100.75) and have done for years. DNS is okay.

Many of our users however have dynamic IP addresses when they coneect to
our server to send mail and this also shows in the header. So if we use
an example of a user with a dynamic IP of 84.84.84.84 connecting to
server1 to send email to AOL, the AOL mail server is bouncing it because
it says the IP 84.84.84.84 does not have a valid DNS reverse. Why I
don't know ... but I wondered if it had anything to do with MailScanner
because that is a new addition to this box.

In /etc/sysconfig I have found a MailScanner file with this in it:

#
# Sendmail Settings
#
SENDMAIL=/usr/sbin/sendmail
QUEUETIME=15m
#INQDIR=/var/spool/mqueue.in
INPID=/var/run/sendmail.in.pid
OUTPID=/var/run/sendmail.out.pid
SMPID=/var/run/sm-client.pid
MSPUSER=smmsp  # User for mail submission queue runner
MSPGROUP=smmsp # Group for mail submission queue runner

#

What does the SMPID line mean?

Hope I have explained clearly!

Thanks

Colin


----------------------disclaimer ---------------------------------

1. This e-mail and any attachments are confidential & access by anyone 
other than the addressee(s) is unauthorised.
2. The security of e-mail communication cannot be guaranteed and neither 
Mainline IT nor Mainline Internet will accept claims arising as a result 
of using this medium.
3. Any opinions expressed herein are the opinions of the author and are 
not those of either Mainline IT or Mainline Internet.
4. Although all email is scanned for viruses, it is the responsibility of 
the recipient to ensure they have adequate anti-virus defences.

------------------------------------------------------------------------