As an admin I used to have a smooth working site for a year and suddenly since a week ago all my new users's registerations, posts, comments' notifications and even users don't any more receive email confirmation sendouts. I am now confirming new email addresses manually but this can't last forever.
I have not changed any of the settings of my server or my site for at least a year. Any ideas on why these notifications have stopped?
This is my site.
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.