Remove previous recipients?

Is there a way to remove previous recipients? Haven’t found a way either on the OS level or within Mailspring that will stick. Removing them from the system Mail app does not remove them from Mailspring. Thanks!

Contacts is still very much “under development”. Right now, it primarily gathers contacts by scanning the messages in your inbox.

Here’s the Roadmap Bundle for Contacts: Bundle: Contacts. Voting for that will help increase its priority in planning.