A recipe to make the integration working
If any of you will experience problems with the integration, please use the following recipe:
1. Please go to directory:
/Users/your home dir/Library/Mail/Bundles
or
/Library/Mail/Bundles
(depends on MailTags installation type)
2. Use the context menu to 'Show package content' of MailTags.bundle.
3. Go to Resources and copy the MailTagsScriptingSupport application to your Applications folder.