The most common reasons for not being able to send emails through Outlook are wrong Outlook settings or blocked port 25 by the Internet Service provider.

Here are a few checks you can make to ensure the problem is not on your end:

Use the correct Mail Client settings:

  • Incoming mail server (POP3/IMAP server):
  • Outgoing mail server (SMTP server):
  • Username: the full e-mail address like
  • SMTP authentication must be enabled for the login to be successful.
     IMPORTANT: Please do not use secure authentication to your mail server.

The most common mistake is to leave My SMTP server requires authentication checkbox unchecked. This option should always be enabled since most mail servers require such authentication.

 Obtain Email Configuration:

you need log into Webmail. Below are the steps to acquire the configurations.

Step 1 : Go to your (ex : and login

Step 2 : Enter in the preferred mailbox

Step 3 : On the top right corner you will see your email address. Click on it, there will be a drop down.

Step 4 : Click on Configure Mail Client. All the Manual Configuration can be get from here.

 In our Email tutorial you can find detailed instructions on how to configure your Outlook to work with your web hosting account.

Check connection to port 25

The standard port used for SMTP connection is port 25. Most often the reason for failed email sending is that your Internet service provider blocks this port. Here is FatServers, we recommend to you port 587 for non SSL connection and 465 for SSL connection.

If you are having problems with your email, you may contact us for further assistance.