I am looking for a CRM that enables group email and SMS, does anyone have a suggestion?
Take a look at www.Danaconnect.com, you will hace email, SMS, voice messages and also attachment management.
Here at http://www.bookinglive.com/ we offer online booking systems that integrate with a variety of CRMs including Zoho. From here you're able to send mass emails and SMS messages and reminders. Feel free to get in touch if you have any Qs!