Since a few days ago,  I noticed an increase of reporting activities from users who said they have never received notification email when they register to templateplazza.

As an initial response we usually advice them to check their spam / bulk folder, and in some cases indeed the notification email accidentally thrown into their spam folder. But strangely, there are some cases where the problem is not related to spam/bulk folder matter but it's about a significant delay of the notification email delivery. If the delay is still a matter of minutes, it can be tolerated. But some users report that they got their notification email in a few hours. This is not normal and I decided to investigate what really happened.