Internal mail system using proper "from", manual email send does not.

[Skyrider]

Not sure how to properly set this thread title, but to make it simpel..

Whenever the forums send emails (password reminders, activation email, etc) it sends the E-Mail properly as the forums "Forum Name", (thus, FROM). Now, whenever I attempt to manually send e-mails to people it's using the full forum email as "from".

Example, forum name is "hello!" and the email is hello@hello.com

Receiving email for password recovery --> from: hello! -> subject title here
When I manually send email to user -> send email: From: hello@hello.com -> subject title here.

Is there any specific reason why?