@berstein The "Mail Provider" settings are not reflected in the `tblconfiguration` SMTP* fields (I believe this is from version 8.0 onwards). You can verify by setting the "SMTP Host" value and then checking `SMTPHost` in the DB. There are also many more "Mail Provider" options in UI than related fields in `tblconfiguration`.
Does anyone know where to lookup the "Mail Provider" settings in WHMCS? I've done a complete dump of the database and grep of the file system and haven't been able to find them yet.