Hello, I have couple of mail aliases for my base e-mail address( linux@esaravana.com ). Eg, adrenaline@esaravana.com for my rock climbing group. I use appropriate alias to subscribe to different groups and receive mails. The problem comes when I post messages to the group. The mail goes back as my base e-mail address( linux@esaravna.com ), rather than as my aliased e-mail address( adrenaline@esaravana.com ) and gets rejected. Is there anyway I can add mail aliases to Netscape mail client and choose appropriately as I send mails. Or should I do anything on my mail server. I am running RedHat 7.1 with Sendmail as my smtp server. Sundar