Please, help to solve phpbb forum sending mail bug!
 

I have just found a free phpbb forum script and uploaded it to hosting. Afterwards, I have found email sending bug! When users register at website the registration is performed properly itself, but welcome email is not sent! Also, all registered users need to login twice before to open a topic! Could you please advise on how these issues can be solved?

I have already solved a problem myself. When I contacted my hosting provider they adviced to change an emaild address in forum SMTP settings. According to their rules only the email address associated with a domain can be used to send emails from forum! This seems to work properly for me now!