Regular expression for smtp server name

Jan 1 2014 4:58 AM

Hi Want a regular expression for SMTP server host name.

It should except patter like iuoo.rolta.com (only two '.')

I have an expression but it's excepting more '.' like mail.abc.com.com

^((([\w]+\.[\w]+)+)|([\w]+)).(([\w]+\.)+)([A-Za-z]{1,3})$

Can anyone help me on this?

Answers (1)