Joomla version 1.5.15
CB version 1.2.1

I've been using an extension called CBMailing for sending email to select groups or an entire user list. I've found that with the high number of users (now up to 103), the mailing function is timing out or something because it fails to send the message. I have a debugging email being sent when it fails, so I can see when this happens. If I disable 10 or so members so that the list is 96 users, email is sent fine.

My question is: what other method for sending a mass email to a select CB group or all CB users is there?