Why aren't my email messages being sent on my VPS or Dedicated Server?
All outbound email from a dedicated or Virtual Private Server (VPS) must use the relay server listed in the Hosting Control Panel. For more information, see What are the relay mail server settings on my dedicated or virtual private server?
Our servers have an outbound email limit of 1000 messages per day. If you need to send more than a 1000 emails per day, please see How do I request additional SMTP relays for a VPS or Dedicated Server?
If you try to send more than a 1000 emails in one day, your remaining email messages (those over the 1000 limit) will be sent the following day.