Full Snapshot Backup


I want to do a full backup of my site. In the section "What tables to archive" there are 3 options:
1) Do not include database tables in this Snapshot
2) Include all blog database tables in this archive. This will automatically include new tables.
3) Include selected database tables in this Snapshot

If I select the second one will ALL the tables from the site be backed up? Also including extra tables created by plugins? Or do I have to select the third option for that and select all of them manually?

Also, is there an option to get notified via email whenever a backup failed or didn't finish 100% correctly?