Just upgraded to TikiWiki 5.0 beta 2 from 4.2
On both versions I'm not able to log as a normal user, since I get message "You did not validate your account ", "You should have received an email. Check your mailbox and your spam box. Otherwise click on the button to resend the email ".
The problem is I'm not able to make mail feature work, so I cannot validate user accounts.
Instead, notification mails are sent automatically once a wiki page is updated, but not after user's creation.
I'm using SMTP, not Sendmail.