---
tags:
 - port
---
# smtp_port

Specifies the port to connect to when making an SMTP connection to a destination
MX host.

The default is port 25.

See also:

 * [kumo.make_egress_source().remote_port](../make_egress_source/remote_port.md)
 * [kumo.make_queue_config().protocol](../make_queue_config/protocol.md)


