Comment on How IMAP works under the hoodparentComments−FuriouslyAdrift1yJMAP is fully supported (since 2019) for Fastmailhttps://www.fastmail.com/dev/−n3storm1yJmap was developed by Fastmail, meanwhile all primary FLOSS mail servers do not support it and just new projects like Stalwart are starting to bring it up.−FuriouslyAdrift1yCyrus supports it. https://www.cyrusimap.org/imap/developer/jmap.html
Comments
JMAP is fully supported (since 2019) for Fastmail
https://www.fastmail.com/dev/
Jmap was developed by Fastmail, meanwhile all primary FLOSS mail servers do not support it and just new projects like Stalwart are starting to bring it up.
Cyrus supports it. https://www.cyrusimap.org/imap/developer/jmap.html