.CIS File Extension
File TypeCheckInbox Settings File
What is a CIS file?
A CIS file is a settings file created by CheckInbox, a Windows program that enables a user to organize and stay current with new emails. It contains settings for email accounts added in the program, which includes the email address, POP3 server name, user name, and password.
CIS files are created when a user backups account settings in CheckInbox. To create a backup, select. To open a CIS file, select .
CheckInbox is a simple utility for streamlining multiple email accounts. You can add multiple POP3 email accounts and the program immediately notifies you when you receive an email.