Known bug in Autoresponder date differences between client and console side can be fixed:
Please extract attached archive to \IceWarp\html\webmail\client\inc folder (overwrite the old files). Then you have to navigate to \IceWarp\html\webmail , there you have to run "build.safe" file using "php.exe" in IceWarp PHP folder (\IceWarp\php). Then, after IceWarp services restart the autoresponder should work without problems.
It works only for version 12.0.1
For Linux is necessary to define CLIENT class.
NOTE: Fix for https://icewarp.zendesk.com/hc/en-us/articles/115007981967-IceWarp-WebClient-PRO-Unable-to-upload-folders-or-empty-files is also included in the archive