Problem: when a new user registers at my site the verification e-mail is not sent (or at least it does not reach the user). I have tried setting up a few test accounts and the notifiction does not get here. Have tried to enter the user name and request password at the login screen as well.

The strange part: it worked fine earlier (until yesterday) - and it still works for users registered earlier! Eg if I type in my own user name and request the password an e-mail arrives shortly...

Anyone who has a clue about what could be wrong? I have looked at the user registration from inside (admin of user accounts) and the e-mail looks correct there...

Another problem as many have mentioned here is that it is impossible to delete users. No error message, the users just don´t get deleted. There are several threads here asking the same question but no answers to that bug (?).