current/src/main/resources/META-INF/services/javax.mail.Provider

com.sun.mail.imap.IMAPProvider
com.sun.mail.imap.IMAPSSLProvider
com.sun.mail.smtp.SMTPProvider
com.sun.mail.smtp.SMTPSSLProvider
com.sun.mail.pop3.POP3Provider
com.sun.mail.pop3.POP3SSLProvider