FIle locking in /bin/mail

[David R. Linn]

Since upgrading to SunOS 4.1 on my main mail machine, I have been plagued
with obscure mail problems that I believe I have tracked to /bin/mail, the
actual delivery agent.  I can demonstrate unusual behavior by the SunOS
binmail program that does not occur with the delivermail program available
from UCB in the sendmail v5.64 release as binmail/binmail.c.

Unfortunatley, the UCB and SunOS programs use different file locking
protocols on the incoming mail spool file so I suspect that I would have
to replace all mail-proccesing programs if I wanted to replace the SunOS
program with its UCB counterpart.

Does anyone have patches for the UCB version to allow it to do file
locking like the SunOS version or can anyone indicate the changed needed?

	Thanx,
	 David

David Linn, System Manager/Postmaster	   |INET: drl at vuse.vanderbilt.edu
Vanderbilt University School of Engineering|Phone: [+1] 615-343-6164
Post Office Box 3241, Station B            |Disclaimer:
Nashville, TN, USA  37235                  |  I speak only for myself.