Feature Request - CalDAV Scheduling (RFC 6638)

[jwcross]

Hi! First, just want to say I'm really enjoying purelymail so far.

I see that the CalDAV implementation is fairly new (as of 2022), and only implements "the basic RFC 4791". Is it on the roadmap to implement RFC 6638? (Fyi I found this link via this Google Groups discussion).

My primary purpose is to send calendar invites from a more professional-looking email. I've always used Gmail and iCloud, and I didn't realize that the Invite / Accept / Reject functionality is a CalDav extension (have learned so much over the last few days!). As it stands, I can't use purelymail for my main email, but I'm still very happy with the product for my other business email-only addresses.

Thanks for consideration!