Strange error from Sendmail

Am Mon, 30 Oct 2000 23:23:59 schrieb SYSTEM-LOGGER: [syslog@machine.domain: Oct 30 22:23:59 www sendmail[21250]: NOQUEUE: SYSERR: putoutmsg ([xx.xx.xx.xx]): error on output channel sending "220 machine.domain ESMTP Sendmail 8.9.3/8.9.3; Mon, 30 Oct 2000 22:23:59 GMT": Broken pipe] Hello, I received the mentioned message from one of our mail servers. Does anybody know, what has happened there? Did someone succeed in exploiting one of Sendmail's uncounted weaknesses? Greets, Heiko -- Heiko Rother -- CM Systemhaus GmbH, Hannover, Abt. Online-Medien