PS: WE NEVER store any email data that belongs to you. Google has verified our compliance via a lengthy audit!
Manage mailbox labels — this allows DarwinMail to add and remove labels (inbox, snoozed, spam, etc) to your emails.
Manage your sensitive mail settings — this allows DarwinMail to update settings such as your forwarding address and aliases.
Manage you basic mail settings — this allows DarwinMail to update settings such as your signature and out of office reply.
View and modify but not delete your email — this allows DarwinMail to create your email (when you use the compose functionality), modify you email, and send your email (when you click the send button). This also allows you to update and save drafts.
Please feel free to check out the following official documentation from Google for further reading.