@lancealot I understand where you’re coming from.
One of the best features of of eM Client is that it fully supports Google/Gmail Labels as Tags and displays on each message all of the Labels/Tags that apply to that message.
The real issue, in my view, is that Fastmail is the only alternative to Google/Gmail that offers true label support (with the ability to tag e-mails with one or more labels and the labels all showing up in IMAP e-mail clients), but eM Client does not currently support Fastmail labels/tags. Both eM Client and Fastmail would be a much greater value if eM Client fully supported Fastmail labels. Whether that is through JMAP or some other method doesn’t matter. … It would make eM Client and Fastmail the go-to (and only!) desktop e-mail client and e-mail service for anyone who wants to use a desktop e-mail program with true label/tag support without being stuck with Google/Gmail.
Feature Request: enable labels in Fastmail - #13 by SilverM99 @Gary