Today I just started running into issues using the emails part of the api. I get this response back from hitting (/content/api/v2/email):
[correlationId] => XXX
[message] => This oauth-token (XXX) does not have proper permissions! (requires any of [content-core-api-access])
[requestId] => XXX
[status] => error
When I get the metadata on the token I receive this: