13:57:24 [WARNING] Exception encountered when loading plugin: BungeeAuth
java.lang.NoClassDefFoundError: javax/mail/MessagingException
    at ua.luckyzeero.auth.AuthManager.<init>(AuthManager.java:41)
    at ua.luckyzeero.auth.Main.onEnable(Main.java:28)
    at net.md_5.bungee.api.plugin.PluginManager.enablePlugins(PluginManager.java:227)
    at net.md_5.bungee.BungeeCord.start(BungeeCord.java:270)
    at net.md_5.bungee.BungeeCordLauncher.main(BungeeCordLauncher.java:57)
    at net.md_5.bungee.Bootstrap.main(Bootstrap.java:15)
Caused by: java.lang.ClassNotFoundException: javax.mail.MessagingException
    at net.md_5.bungee.api.plugin.PluginClassloader.loadClass0(PluginClassloader.java:53)
    at net.md_5.bungee.api.plugin.PluginClassloader.loadClass(PluginClassloader.java:27)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 6 more