At 14:28 05/17/2004 Monday, Cesar Sosa wrote:
 >I am getting lots of "lost input channel messages" on my sendmail logs.  We
 >are using sendmail on an Unix box.  Can anyone elaborate on what may be
 >cause?

a quickie GOOGLE search provides this URL that may be of value:

http://www.tek-tips.com/gviewthread.cfm/lev2/3/lev3/15/pid/14/qid/512836

there are more results:

http://www.google.com/search?hl=en&lr=&ie=UTF-8&safe=off&q=sendmail+%22lost+input+channel%22