UBB.threads PHP Forum Software Community Forums UBB.classic UBB.classic 6 Support UBB 6.05 : Password confirmation and other e-mails don't go?

Dear Charles,
Thank you for a reply. I 've checked all mail functions again and no one seems to work -no UBBfriend, no private message notification, no password/login recovery e-mailing.
What can be wrong -provider claims he changed nothing and previously these service worked.
Many thanks for help!
Evgen