Answer #3: SOAP (communication protocol) for communication between applications. Uses HTTP (port 80) or SMTP ( port 25 or 2525 ), for message negotiation and transmission.

What port does a SOAP API use?

SOAP is an XML schema. It usually runs over HTTP (port 80), however.

What is SOAP firewall?

SOAP is a messaging format that can ride on top of other transport protocols, such as SMTP, but is primarily used with HTTP. For a firewall to adequately secure SOAP traffic, it must also perform XML parsing. …