recently any e-mail messages (notifications, password reset messages etc.) are not coming to neither me.
I've done some digging on the forum here, and found out that this kind of issue is usually caused by e-mail addresses getting on the so-called 'bounce list'. Would it be possible for you to check, if the following e-mail addresses are in fact on that list, and remove them, if necessary?
The e-mail is: email@example.com
wating for your friendly answer