Currently Domino-Web-Tasks which use kyr-Files for security-reasons, only the first kyr-file (in alphabetical order) in the data-dir is used. regardless how many kyr (and sth-) files exist.
At least one kyr-file for smtpand one for http would be helpful.
An alternative solution is to use LetsEncrypt for Domino (LE4D) from midpoints. But the feature of using different kyr-files for difft web-services or web-sites is a need. It should run since Version 8.5, but recently does not work until now.