I can't send email, but I can receive email

Here are some troubleshooting steps you could take to find out where the problem with sending email is.

Assuming you are using Windows, do the following:

1. Go to Start -> Run
2. Type in cmd and hit enter.
3. You'll see a terminal or dos windows - a little black window.
4. Type "telnet yourdomainname 25" and hit enter. Your domainname is your mail server, e.g., mail.yourisp.com or something like that.
5. Once you hit enter, the screen should clear and it should show on the top: 220 someserver.com ESMTP and a blinking cursor on the bottom of that.
6. If you can see this, then your smtp is working. If not, reboot your modem, reboot your computer and if still no help, call your ISP.