Log in to save your mailboxes and open any inbox with one click — no pasting tokens again.
Use this after you've secured an account (changed its password). Sign in once and get a new token line for Inbox Reader.
You get one line per account, with fields separated by |. Here's an example (this token is fake — yours will be much longer):
M.). This is what lets Inbox Reader open the mailbox without a password. Keep it secret.Paste the whole line — no spaces, no line breaks — into Quick read and click Read. Only the email, token and client_id are needed to read mail.
client_id is the app Inbox Reader uses to talk to Microsoft; it already comes in your account line. The Get token tab signs you in once (device login) and returns a fresh token line. For your own account from scratch, register a free app at portal.azure.com (enable public client flows; add Graph Mail.Read / Mail.ReadWrite + offline_access) and use its client ID.