Update your NIC drivers. I believe this has to do with the use of the SMTP pipelining feature and bad NIC drivers (I've seen stuff like this on Dell Poweredge servers using the onboard Broadcom NIC's quite a bit).
On Fri, 14 Jan 2005 15:04:33 -0500, Matt Plahtinsky <[EMAIL PROTECTED]> wrote: > W2k3 E2k3 one Exchange server setup > > Started having some weird problems today. I can receive email but can't > send external email. No errors in logs. If I telnet port 25 from the > exchange server to another SMTP server I connect but as soon as I type > the first letter it kicks me out and that's as far as I can get. Any > ideas where to start trouble shouting this? The NDR that I get is > "#5.0.0 smtp;503 5.0.0 Polite people say HELO first>" Any thoughts > appreciated. I > Thanks > > Matt _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
