phil@ux1.cso.uiuc.edu (05/18/89)
> We are apparently seeing this problem from the other side. > Occasionally sendmail will go to sleep (waiting for input ?) during a > SMTP session with another host which is trying to deliver a message to > us. This occurs at different stages (HELO, MAIL FROM, DATA) of the > SMTP session. Sendmail eventually times out, but the host on the > other end apparently makes multiple tries during the timeout period > with the same result. We're running v5.61 of sendmail with some fixes > from comp.bugs.4bsd under 4.3bsd-tahoe on a tahoe machine. > > Anyone experiencing similar problems? Anyone know of a fix? I have been seeing this happen occaisionally on several hosts receiving mail from IBM VM SMTP. Some cases have been verified as having well over 100 destination addresses, one per line, in the RFC822 To: field. Attempts to send the same mail to other hosts running sendmail 5.61 also resulted in sendmail getting hung. Another version of sendmail delivered the mail, but inserted a blank line after the 100 or so To: addresses it was parsing. You might experiment with that to see if that is causing the same kind of hangup in sendmail. --phil howard-- <phil@ux1.cso.uiuc.edu>