(Ruby) Office365 IMAP with OAuth2 Authentication

Demonstrates how to authenticate using OAuth2 with outlook.office365.com.

Chilkat Ruby Downloads Ruby Library for Linux and MAC OS X

require 'chilkat'

# An Office365 OAuth2 access token must first be obtained prior
# to running this code.

# Getting the OAuth2 access token for the 1st time requires the O365 account owner's 
# interactive authorizaition via a web browser.  Afterwards, the access token
# can be repeatedly refreshed automatically.

# See the following examples for getting and refreshing an OAuth2 access token

# Get Office365 SMTP/IMAP/POP3 OAuth2 Access Token
# Refresh Office365 SMTP/IMAP/POP3 OAuth2 Access Token

# First get our previously obtained OAuth2 access token.
jsonToken = Chilkat::CkJsonObject.new()
success = jsonToken.LoadFile("qa_data/tokens/office365.json")
if (success == false)
    print "Failed to open the office365 OAuth JSON file." + "\n";
    exit
end

imap = Chilkat::CkImap.new()

imap.put_Ssl(true)
imap.put_Port(993)

# Connect to the Office365 IMAP server.
success = imap.Connect("outlook.office365.com")
if (success != true)
    print imap.lastErrorText() + "\n";
    exit
end

# Use OAut2 authentication.
imap.put_AuthMethod("XOAUTH2")

# Login using our username (i.e. email address) and the access token for the password.
success = imap.Login("OFFICE365_EMAIL_ADDRESS",jsonToken.stringOf("access_token"))
if (success != true)
    print imap.lastErrorText() + "\n";
    exit
end

print "O365 OAuth authentication is successful." + "\n";

# Do something...
success = imap.SelectMailbox("Inbox")
if (success != true)
    print imap.lastErrorText() + "\n";
    exit
end

# Your application can continue to do other things in the IMAP session....

# When finished, logout and close the connection.
success = imap.Logout()
success = imap.Disconnect()

print "Finished." + "\n";