Hi,
Both cases were wrongly claimed to get fixed, run the sample and see both issues:
The 1st one still has:
< ! --[if !SupportsSharedCalendar]-- > Accept and view calendar
< ! --[endif]–>
The 2nd one does not rend…...MemoryStream → MailMessage → HTML), and we confirm that this issue...support Microsoft conditional HTML. These parts may still exist...