laminas-mail - Parse, create, store, and send email messages, using a variety of storage and transport protocols.

Laminas\Mail provides generalized functionality to compose and send both text and MIME-compliant multipart email messages. Mail can be sent with Laminas\Mail via the Mail\Transport\Sendmail, Mail\Transport\Smtp or the Mail\Transport\File transport. Of course, you can also implement your own transport by implementing the Mail\Transport\TransportInterface.