Stub SMTP mail server with simple REST API for integration tests

I'm looking for some stub SMTP server, that:

• will expose SMTP interface to incoming emails from my apps


• store these mails (might be in memory)


• will expose som simple REST API to read/delete mails

There are some SMTP stubs, but none of them (Dumpster, SubEthaSMTP, DevNullSmtp) exposes REST.

(OK, it does not have to be REST, SOAP is good too)