I solved the problem by adding back my ppp ip address into my hosts file.
I am attatching the two mails which I received so far and they helped me to
solve my problem.
Thanks again Casper and Stephen and may more are coming...
==============================================================
>From sweh@mpn.com Fri Apr 5 06:38 EST 1996
Subject: Re: your mail
To: ying@share.sph.jhu.edu
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=US-ASCII
Content-Length: 532
> --------------------------------------------------------------
> Apr 4 17:55:15 alive sendmail[28489]: gethostbyaddr() failed
> Apr 4 23:42:26 alive sendmail[28869]: gethostbyaddr() failed
> Apr 4 23:42:55 alive sendmail[28880]: gethostbyaddr() failed
There is no lookup for your IP address into a hostname. If you have
multiple interfaces or multiple addresses on one interface then you
must have a lookup for all the IP addresses.
The message there isn't an error - it's a warning. Just an annoying one :-)
rgds
Stephen
>From casper@holland.Sun.COM Fri Apr 5 04:53 EST 1996
To: ying@share.sph.jhu.edu (ying He )
Content-Type: text
Content-Length: 543
>Dear Sun managers;
>My system keep getting following messages in file /var/adm/messages
>when sendmail, what caused these and Any way I can stop these?
>(alive is our hostname)
>--------------------------------------------------------------
>Apr 4 17:55:15 alive sendmail[28489]: gethostbyaddr() failed
>Apr 4 23:42:26 alive sendmail[28869]: gethostbyaddr() failed
>Apr 4 23:42:55 alive sendmail[28880]: gethostbyaddr() failed
Your system can't find all names for all interfaces.
Check for funny addresses with "ifconfig -a"
Casper
Ying
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