CODEWITHSUNDEEP
phpoauth-2.0office365pop3
Lary Ciminera
Lary Ciminera

Reputation: 1270

How to authenticate a pop application by using oauth 2 for outlook.office365.com in PHP

I'm following this guide

When I try to authenticate a POP server connection, I have an error : "-ERR Authentication failure: unknown user name or bad password." Even with a valid access_token

Here is my process so far.

I granted POP.AccessAsUser.All to my app on azure.

I'm connected with my user on Microsoft using the scope

offline_access https://outlook.office.com/POP.AccessAsUser.All

I retrieved a refresh_token,

With this refresh token, I requested a valid access_token with the scope

https://outlook.office.com/POP.AccessAsUser.All

With the access token and my email address, I generated the XOAUTH2

$XOAUTH2base64 = base64_encode("user=" .$this->username . "^Aauth=Bearer " . $this->token . "^A^A");

And the authentication fail

Here is a detail of the conversation (C : client, S: Server)

S: +OK The Microsoft Exchange POP3 service is ready. [...==]
C: AUTH XOAUTH2
S: +
C: {here i input my XOAUTH2base64} 
S: -ERR Authentication failure: unknown user name or bad password.

What im i doing wrong?

Upvotes: -2

Views: 642

Answers (1)

Lary Ciminera
Lary Ciminera

Reputation: 1270

My only mistake was generating $XOAUTH2base64 wrong.

The correct way of doing it in PHP is :

        $XOAUTH2base64 = base64_encode("user=" .$this->username . "\1auth=Bearer " . $this->token . "\1\1");

Upvotes: 0

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