Inform Check Envelopes January 13, 2022 21:29 Updated What size envelopes are used for system checks printed from Inform? The envelope size is a standard #10, single window. The placement of the window fits the customer's address, this is recommended for printing and mailing invoices as well. Related articles Do customers get credited automatically when you close a warranty claim? Financial statements and G/L inquiry are Blank in New Year Configure credit card through TSYS Cayan How to view customer invoice and payment history InformMobile Overview