for me to login to my email accounts i have to put @webpageurl.com and i was wondering how i could eliminate that because it will always be the same.
it is an option you could have filled in in the install setup.
open config/main.inc.php and find:
$rcmail_config['username_domain'] = '';
edit to:
$rcmail_config['username_domain'] = 'domain.name';
replace domain.name with your domainname, without '@'