First you must make sure you are running IMS in your Exchange server. The server which runs the IMS will be your SMTP server for the unix servers. If you already have IMS running check the Accept Conenctions settings. If this is set to Only from hosts using authentication, then you need to add the IP address of your Unix server to the specify by host list. Once you do this proceed to the next step. If the IMS is configured to accept from any host, proceed to the step. from the unix server, do a "telnet xx.xx.xx.xx 25", where xx.xx.xx.xx is teh IP of your exchange server In telnet console type the following, HELO MAIL FROM:YOURID@xxxxxxxxxxxxxx <mailto:FROM:YOURID@xxxxxxxxxxxxxx> RCPT TO:YOURID@xxxxxxxxxxxxxx <mailto:TO:YOURID@xxxxxxxxxxxxxx> DATA THIS IS A TEST MAIL . (this is a "." you must type this) Once you do this you should get "Message accepted" or a similar message. Then check your mailbox to see if you got the mail. If this worked, you should be able to send mails from Unix server. -----Original Message----- From: jibarra@xxxxxxxxxxx [mailto:jibarra@xxxxxxxxxxx] Sent: April 18, 2002 5:15 PM To: [ExchangeList] Subject: [exchangelist] Help http://www.MSExchange.org/ I have exchange 5.5, sp4 running on win2k server. We have several unix, sun servers that eventually need to send email for backups and schedule jobs to internal users. And they leave the unix servers but never make it to the receipient. My querstion is, Is there a routing or relaying issue that my exchage server doesn't have enable or do you think is at the unix side level? Have any of you had any issues like this? thanks ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: psraj@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')