JavaMail API from Maven

The Maven coordinates changed some time ago to be compatible with the scheme described here. The new coordinates are here.

In short:

• The groupId javax.mail is no longer used for the implementation.
• There is a new artifact at javax.mail:javax.mail-api. It provides the javax.mail-api.jar file. This contains the JavaMail API definitions only, suitable for compiling against.
• com.sun.mail:javax.mail contains the javax.mail.jar file, the JavaMail reference implementation jar file, including the SMTP, IMAP, and POP3 protocol providers.

So, you should either use com.sun.mail:javax.mail for compilation and packaging/deploy, or use javax.mail:javax.mail-api for compilation and then deploy the com.sun.mail:javax.mail jar where appropriate (e.g., your Tomcat lib).