Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!ames!ucbcad!ucbvax!TOPAZ.RUTGERS.EDU!hedrick From: hedrick@TOPAZ.RUTGERS.EDU.UUCP Newsgroups: mod.protocols.tcp-ip Subject: Re: Another aspect of SMTP timeouts Message-ID: <8703010118.AA05357@topaz.rutgers.edu> Date: Sat, 28-Feb-87 20:18:48 EST Article-I.D.: topaz.8703010118.AA05357 Posted: Sat Feb 28 20:18:48 1987 Date-Received: Sun, 1-Mar-87 17:52:16 EST Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 9 Approved: tcp-ip@sri-nic.arpa Sorry, but your diagnosis is quite correct. We modified sendmail a year or so ago to map nicknames into primary host names. We found that suddenly connections were timing out. Turns out the code to process headers was invoked after the connection was opened. My sensibilities were badly offended, but I found I could make things work by moving our host table to a dbm format. This speeded things up enough that the other end wouldn't time out. Now that we have moved to the domain system, it is quite possible that the problem has returned.