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sendmail is a mail server & I am sure you dont want to run it .
cos u dont know what it is.....to stop it from starting just
go to /etc/rc.d/rc5.d/ & there must be a file Sxxsendmail
xx is some number......just rename it to Kxxsendmail or may be
something else not starting with S (S means you want to start
it, K means you want to kill it)......
I had a similiar problem with this. Mind you I'm not sure how I solved it but it might have something to do with the hosts file. Check that the machine name (fully qualified one) and ip address is correct. I think sendmail checks this file on startup.
A-dummy is right about not having it running if you don't need it. It'll just provide a possible security risk if not maintained properly.
you mean rc.d ,rc3.d & such things.....they are initialisation
files & all files inside rc5.d (starting with S)are run,for example ,
when you enter 5th level.....all such scripts are kept inside rc.d
directory structure with (probably) symbolic links to /etc/init.d...
this is true for most of the distros following system V like RH,
right, the problenm is probably that it is not resolving your domain name properly, that's what it always is. if you tail /var/log/messages youshould see 3 or 4 error messages saying i can't resolve the hostname. make suer that the hostname is set in /etc/mail/local-host-names and any other relevant files in that directory