Decodes the messages' body text, putting each part as a separate entry in the returned slice.

Just use the user that we have credentials for.

Only the Raw.

Constant Labels.

Determined heuristically from testing We should avoid making more than this many rquests in parallel, else the gmail service will yield errors.

Scope docs: https://godoc.org/google.golang.org/api/gmail/v1 If modifying these scopes, delete your previously saved credentials at ~/.credentials/...

A wrapper for a message Id that can be passed by reference.