(Swift 3,4,5...) Office365 IMAP with OAuth2 Authentication

See more Office365 Examples

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

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // 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.
    let jsonToken = CkoJsonObject()!
    var success: Bool = jsonToken.loadFile("qa_data/tokens/office365.json")
    if success == false {
        print("Failed to open the office365 OAuth JSON file.")
        return
    }

    let imap = CkoImap()!

    imap.ssl = true
    imap.port = 993

    // Connect to the Office365 IMAP server.
    success = imap.connect("outlook.office365.com")
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

    // Use OAuth2 authentication.
    imap.authMethod = "XOAUTH2"

    // Login using our username (i.e. email address) and the access token for the password.
    success = imap.login("OFFICE365_EMAIL_ADDRESS", password: jsonToken.string(of: "access_token"))
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

    print("O365 OAuth authentication is successful.")

    // Do something...
    success = imap.selectMailbox("Inbox")
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

    // 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.")

}