No, I have no idea. Since it has already worked I doubt that it is a problem with the configuration of uddeIM.
Maybe something else has changed (not necessarily CB) so notification stopped working. Are you sure that the notifications are not generated by Joomla? Maybe the mail transfer agent does not accept your SMTP messages?
uddeIM & uddePF Development
CB Language Workgroup
CB 3rd Party Developer
It seems that it works even with different sender names, i was testing with an email that don't receive the notification but i just test with 3 other ones that receive it...
So i guess that this is the email i was using that has a problem.
Thank you for your time and really sorry about this.