Hello,

I am new to linux admin. Can anyone help me on fake ip mail. Assume that I have http://www.maindomain.com is the main domain name and http://www.subdomain.com is the fake ip of main domain name.

I tried to send mail using user@subdomain.com but when it reach destination it become user@maindomain.com

How can I set it to reach the destination as if it send from subdomain.com

Try to rephrase your question, I do not understand it

ok, I have a domain name http://www.MAINDOMAIN.COM and after that i add another domain http://www.SUBDOMAIN.COM. it use the same ip address and pointing to the same address as http://www.MAINDOMAIN.COM. When I send a mail using USER@SUBDOMAIN.COM to OTHERUSER@OTHERDOMAIN.COM when OTHERUSER open his mail box, it show that the message send from USER@MAINDOMAIN.COM instead of USER@SUBDOMAIN.COM. I don't know where the problem is but I think it should be USER@SUBDOMAIN.COM instead of USER@MAINDOMAIN.COM in OTHERUSER mailbox. How can I do that?

you need to set up virtual names in your e-mail program's setting. You ahve to tell it that more than 1 domain is using an IP and that it should keep it.

Since I don't know what program you are using, it is kinda hard to tell you what is wrong :)