Xojo Plugin

Office365 POP3 Login with OAuth2 Authentication

See more Office365 Examples

Demonstrates how to authenticate using OAuth2 using the POP3 protocol with outlook.office365.com.

Note: This example requires Chilkat v9.5.0.83 or greater.

Xojo Plugin

Dim success As Boolean
success = False

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Dim mailman As New Chilkat.MailMan

mailman.MailHost = "outlook.office365.com"
mailman.MailPort = 995
mailman.PopSsl = True

// Use your O365 email address here.
mailman.PopUsername = "OFFICE365_EMAIL_ADDRESS"

// When using OAuth2 authentication, leave the password empty.
mailman.PopPassword = ""

// Load our previously obtained OAuth2 access token.
Dim jsonToken As New Chilkat.JsonObject
success = jsonToken.LoadFile("qa_data/tokens/office365.json")
If (success = False) Then
    System.DebugLog(jsonToken.LastErrorText)
    Return
End If

mailman.OAuth2AccessToken = jsonToken.StringOf("access_token")

// Make the TLS connection to the outlook.office365.com POP3 server.
success = mailman.Pop3Connect()
If (success <> True) Then
    System.DebugLog(mailman.LastErrorText)
    Return
End If

// Authenticate using XOAUTH2
success = mailman.Pop3Authenticate()
If (success <> True) Then
    System.DebugLog(mailman.LastErrorText)
    Return
End If

// Find out how many emails are on the server..
Dim numEmails As Int32
numEmails = mailman.CheckMail()
If (numEmails < 0) Then
    System.DebugLog(mailman.LastErrorText)
    Return
End If

// Examine the POP3 session log:
System.DebugLog(mailman.Pop3SessionLog)

// The POP3 session log will look something like this:

// **** Connected to outlook.office365.com:995
// < +OK The Microsoft Exchange POP3 service is ready. [QwBIADIAUABSADEAOABD...YwBvAG0A]
// > AUTH XOAUTH2
// < + 
// > <base64 string in XOAUTH2 format>
// < +OK User successfully authenticated.
// > STAT
// < +OK 3 375302

// End the POP3 session and close the connection to the GMail server.
success = mailman.Pop3EndSession()
If (success <> True) Then
    System.DebugLog(mailman.LastErrorText)
    Return
End If

System.DebugLog("Finished.")