You can send letters or emails to individual guests starting from the attendee entry. For text messages, all you need is a telephone number.

1. Open the record in the attendee list and switch to the  Mail tab in the side navigation.
2. Create a new mail/email/SMS with or without a template by clicking on  New (Writing an email). Which templates and dispatch type are offered depends on the data you have:
   1. Phone number only: SMS only
   2. Email address: includes sending emails
   3. Complete address: includes mail
3.  Send the email/SMS or  Print a letter.