True Group Messaging/Emailing

[PPC 6800 User]

I have a PPC6800 and I am looking for an app that has true group messaging/emailing. I have downloaded a couple and they don't actual send the messages to the receipients.

I need to send a group of 15 people text messages and emails almost daily. it takes forever to select each recipient one by one in my contacts to send it that way. Not to mention, sometimes I forget someone while I'm selecting the recipients.

I would apreciate if someone can point me to an app that does this really well.

A real + would be to have an app that can handle both Threaded and group text/email messaging.

Thanks so much in advance for your help guys.