I want to disable the welcome mail after registering the user and i want to send welcome mail altering clecking the authentication mail. Please help me to solve it

Hi,

Sorry this is impossible right now, this hack is bit complicated.. I cant help you too much... :(

Can I just sending the welcome email right now only?

Which email do you mean? for new register user we have 2 emails, account information email and then activation email

account information

You need hack the code for this..

1.open this file components/com_community/controllers/register.php
2. remove or commen this code :

$this->sendEmail('registration_uncomplete', $tmpUser, $password);