As many of you probably noticed today, the website was down for a few hours. This was due to some exploits that presumably a hacker (or some kind of bot I would think) used to run some scripts that would send spam emails in great numbers. It was a bit troublesome to locate the scripts but we finally got them. I'll be upgrading some of the systems and plugins we have in place to make sure this does not happen again (although there could always be exploits we don't know of or new ones that can appear at anytime --> basically, we never know).
Since the scripts were sending a lot of emails, I do believe those activities were most likely the cause of all the recent issues we've been having regarding email notifications not being sent. Normally, this problem should be fixed as well now.
I'll keep you posted in the case of any new development.
We apologize for the inconvenience caused by the downtime earlier and thank you for your patience!