Newsgroups: comp.mail.sendmail Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!malgudi!osc.edu!karl.kleinpaste From: karl.kleinpaste@osc.edu Subject: Re: New sendmail error... Message-ID: <1991May15.012841.2008@oar.net> Sender: news@oar.net Nntp-Posting-Host: ashley.osc.edu Organization: Viento Gigabit Testbed, Ohio Supercomputer Center References: Date: Wed, 15 May 1991 02:27:49 GMT Lines: 21 hogan@csl.sri.com writes: Some of the users here have started getting strange "bounce" messages from sendmail, although nothing that I know of has changed: 451 makeconnection: server "smtp" unknown: Invalid argument 554 machine.name (TCP)... 554 System file missing 554 user@machine.name... System file missing YP sucks. The problem is that sendmail is asking for the numeric port identifier associated with the "smtp" service. This comes from /etc/services in normal BSD UNIX systems, and from the YP services map in mutant SunOS systems. Your YP server is overloaded and didn't respond in time, and sendmail doesn't retry the request. Nothing to be done but [a] de-overload your YP server. [b] hardcode "25" where it asks for "smtp" in daemon.c. [c] nuke YP as a whole with the biggest weapon you can find. --karl