Select message by attachment MIME type

[Max Görner]

Hello,

for a macro I would like to match a message based on its attachments. Since I
have to use Outlook Web App, I often get calender events as e-mail. Messages
telling me that someone accepted my invitation are empty and contain an
attachment without a name but with file type text/calendar.

Is there a way to select messages containing an attachment of type
text/calender (or any other, for that matter)?

Thank you very much.


Best Regards
Max Görner