Cannot send emails using Outlook

The most common reasons for SiteGround customers to be unable to send emails through Outlook are wrong Outlook settings or blocked port 25 by the Internet Service provider.

 

Use the correct Mail Client settings:

• Incoming mail server (POP3/IMAP server): mail.yourdomain.com
• Outgoing mail server (SMTP server): mail.yourdomain.com
• Username: the full e-mail address like email@yourdomain.com
• 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 SiteGround servers require such authentication.

In our Email tutorial you can find detailed instructions Outlook setting guide:

 

Check connection to port 25

The standard port usually used for SMTP connection is port 25. Most often the reason for failed email sending is that your Internet service provider blocks this port. If is the case we recommend that you use the alternative port 2525 for your email SMTP connection.

For detailed instruction how to check you connection to port 25 with the most popular OS and how to change your default SMTP port to 2525 please refer to the SMTP refuses connection article.

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Find expert web hosting services at SiteGround.com - unlimited email accounts, unlimited forwarders, webmail access from anywhere, POP3, IMAP, SMTP.

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