MMBase Email
The email application provides builders and functions to enable
MMBase to send (and receive) email. You can create 'email' objects
which you can fill with information that needs to be send, and use
some code to send this email to the user. It also includes MIME
support that enables you to send out multipart emails including
attachments.
API doc
Maven dependency
<dependency>
<groupId>org.mmbase</groupid>
<artifactId>mmbase-email</artifactId>
<version>2.0-SNAPSHOT</version>
<type>war</type>
</dependency>