I have Red Hat Linux 6.2 on Intranet and running apache. I can send mail from linux to surindersingh@bflsoftware.com but I am unable to send the mails from "surindersingh@bflsoftware.com" to "surinder@164.164.58.187" .i.e.linux machine. The message to my bflsoftware.com mail-id will have surinder@linux in TO: but i cann't send to surinder@linux because linux is not a valid domain on Internet. my email client eudora will give invalid syntax for the mail-id. If i am not having valid domain name on net for the linux machine, can I get emails or not? if yes how should i put RCPT TO: field? ------ the sendmail deamon is running. [surinder@linux surinder]$ ps -eaf|grep sendmail root 566 1 0 Jul30 ? 00:00:00 sendmail: accepting connections ----------- Please help me to enable mail server on linux to receive mails. Thanks Surinder - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.rutgers.edu