I am Trying to send an authorized Email without any pear is it possible or not?
If it is than please give me some tips about it.
Regards.

It's sys admin who designate an email account authorised - Pear or any sending interface is irrelevant.

At its most basic, use php's mail function.

At a guess, the OP probably means SMTP authentication rather than "authorised", which needs the Pear extensions rather just the mail() function

You can still use the mail function if you set the auth_username and auth_password field in your php.ini. If you can't or don't want to edit your php.ini try imap_mail. You'll need to connect to the mailbox with imap_open before sending your email.