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What SMTP ports should I use?  Print this Article

For SMTP configuration of your email client, please use one of the following ports:

Default Ports
Port 25
Port 26

SSL Ports
Port 587

Notes
Some ISPs block port 25 as an anti-spam policy.

Port 587 is utilizing a self-signed SSL certificate. You will most likely receive an SSL/encryption warning from your email client for the first time. Do not be alarmed. Simply accept or add an exception for the SSL certificate in your email client.

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