Why can I not send email?

It is possible your internet service provider may be blocking you from sending email outside of their own service.

First, restart your computer and verify you have the correct settings for your mail program as many mail programs cache old settings. Our email tutorials are located here. The username is username@yourdomain.com and the password you defined when creating the email account in the control panel. For sending and receiving the same username and password are used. If everything checks out open a command prompt/shell with your operating system (Windows for example) and type "telnet mail.yourdomain.com 25". If you are unable to connect, your internet service provider is blocking you from sending mail outside their service. For such cases we make port 50 available to you as an alternative port for sending mail via SMTP.

Also make sure you have authentication enabled for outgoing email/SMTP. Those credentials will be the same as your other settings for the mailbox. In some cases try turning TLS on or off. 


  • 479 Users Found This Useful

Was this answer helpful?

Related Articles

Why can I not connect to the mail server?

There are several reasons why you may not be able to connect to the POP3 server, and thus, not be...

What are my mail server names?

Your mail server names are mail.yourdomain.com. The server name will be the same no matter how...

How do I make Outlook leave a copy of my messages on the server?

With Microsoft Outlook, it's possible to leave a copy of each message on the mail server after...

Cannot write to cache directory /tmp/horde

When I try to access web mail in the cpanel and get this messageA fatal error has occurred...

Do you support IMAP?

Yes! We support IMAP. You can also set your mailbox to whatever size you like, which uses your...