SMTP Over Port 250

The Problem

You can receive emails from your Planet Argon server but cannot send them.

This is a very common problem and likely due to your Internet Service Provider (ISP). In an effort to prevent their customers from using their service as a way to send SPAM, they block outgoing connections on port 25, which is the standard and default port for sending emails through.

The Solution

We’ve setup an additional port that you can send email through. Just change your outgoing port to 250 and try again. In most cases, this should solve your problem.

If not, please contact support to discuss other methods to troubleshoot this issue.