If you have earthlink.net for your email provider and suddenly you can receive email but not send, I think I have the solution for you.

I am assuming that you have already checked your username and password as well as your server settings to be certain that they are correct.

If after checking these settings, you still can’t send your email, check your SMTP port settings.

From the Email Account settings page,

1. Click the More Settings button.
2. Click on the Advanced tab.
3. Check the contents of the Outgoing mail (SMTP) field. If it is not 587, delete the contents and type 587.
4. Click the OK button.
5. Click the Next button.
6. Click the Finish button.

This should solve your problem.

Tim

Biden PC is a Computer Network Consulting Company.

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1. BidenPC's I.T. Blog Says:
   October 22nd, 2009 at 7:52 am

   [...] Switch the port number from 25 to 587 and hope that your email host has that port open. Click here for directions on how to switch Outlook from port 25 to 587. [...]