The CMIF Check service, available online, allows CMIF creators and data providers to have their CMIF file examine automatically in advance. The automated check consists of three parts:
The CMIF file to be checked can be uploaded or passed via URL:
or
After checking by CMIF Check, the file can also be checked by visual inspection in CMIF Preview. This is possible directly from CMIF Check via the button in the upper right corner.
The CMIF documentation provides a quick overview of the Correspondence Metadata Interchange Format (CMIF), which you can use to put your edition's letter index online.
You can find more information in the Frequently Asked Questions