PHP Email originator?

[Booost This]

I am trying to edit the originator of any automated email sent from my board. Welcome email, registration confirmation and the like.

When these emails are sent through the PHP sendmail system they come from username@box123.hostname.com

How would I go about changing it to come from my email of choice. For example bot@mydomain.com?

I checked the class_mail.php as well as several templates and cannot come up with anything.

Any help would be appreciated.

[Dismounted]

vBulletin uses the webmaster email set in the Admin CP.

[Booost This]

vBulletin uses the webmaster email set in the Admin CP.

I have had that set to my preferred email and it makes no difference.

[Dismounted]

The mail daemon/server may have also disabled "masking" email addresses, in this case, it will just send the email out as the one you are logging in with, or simply the default server email address.