How To: Configure SMTP to Use Port 587

Version Affected: All

 

Overview

This article explains what's needed to use port 587 instead of port 25 for a realm's SMTP settings.

Configure SMTP to Use Port 587

Port 587 is supported for SMTP, but requires the following:

• Under the realm's Overview tab, in Email Settings, SSL must be enabled.
• The server(s) must have the following Server Protocols enabled: TLS 1.0, TLS 1.1, TLS 1.2.
• The server(s) must have the following Client Protocols enabled: Multi-Protocol Unified Hello, TLS 1.0, TLS 1.1, TLS 1.2.

Special Considerations

If emails are still not being received after configuring the above, see How To: Enable Extended SMTP Logging.


 

SecureAuth Knowledge Base Articles provide information based on specific use cases and may not apply to all appliances or configurations. Be advised that these instructions could cause harm to the environment if not followed correctly or if they do not apply to the current use case.

Customers are responsible for their own due diligence prior to utilizing this information and agree that SecureAuth is not liable for any issues caused by misconfiguration directly or indirectly related to SecureAuth products.