Why can I not send e-mails?

If you are having difficulty sending e-mails using a program such as Outlook, Outlook Express, Apple Mail or Thunderbird, please check the following:

Is your ISP (Internet Service Provider) blocking external SMTP servers from being used when you are on their network?
This is a common problem.  To get around this click on your outbound mail settings in your mail client and change the outbound port from 25 to 587 or 2525
Ensure that you have your SMTP server setup correctly.
  1. The server will be your domain name. (without the www.)
  2. You also need to check that you have your mail app setup to authenticate with your mailbox username and password.
  3. In outlook you would check the box that says this server requires authentication.
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