Mass Mailing
Use this function to update the No Mass Letters and No Mass Emailing options in 
Customers and 
Contact Persons.

- Customers
- Paste Special
    	Customers and Suppliers in Customer register
 - Specify here which Customers are to be affected by the function. You should then use the options below to choose whether the Customers themselves and/or their Contacts are to be updated. If you do not choose at least one of the two options below, the function will have no effect.
 - Set for all Customers
 - Check this box if you would like the Customer records in the selection specified above to have their No Mass Letters and No Mass Emailing options updated.
 - Set for all Contacts
 - Check this box if you would like the Contacts belonging to the Customers in the selection specified above to have their No Mass Letters and No Mass Emailing options updated. 
 - No Mass Letters
 - If you check this box, the No Mass Letters box in the selected Customers and/or Contacts will be checked when you run this function. If you do not check this box, No Mass Letters box in the selected Customers and/or Contacts will be unchecked.
 - No Mass Mailing
 - If you check this box, the No Mass Emailing box in the selected Customers and/or Contacts will be checked when you run this function. If you do not check this box, No Mass Emailing box in the selected Customers and/or Contacts will be unchecked.