Rust

Office365 IMAP with OAuth2 Authentication

See more Office365 Examples

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

// 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 json_token = chilkat::JsonObject::new();
if json_token.load_file("qa_data/tokens/office365.json").is_err() {
    println!("Failed to open the office365 OAuth JSON file.");
    return;
}

let imap = chilkat::Imap::new();

imap.set_ssl(true);
imap.set_port(993);

// Connect to the Office365 IMAP server.
if imap.connect("outlook.office365.com").is_err() {
    println!("{}", imap.last_error_text());
    return;
}

// Use OAuth2 authentication.
imap.set_auth_method("XOAUTH2");

// Login using our username (i.e. email address) and the access token for the password.
if imap.login("OFFICE365_EMAIL_ADDRESS", &json_token.string_of("access_token").unwrap_or_default()).is_err() {
    println!("{}", imap.last_error_text());
    return;
}

println!("O365 OAuth authentication is successful.");

// Do something...
if imap.select_mailbox("Inbox").is_err() {
    println!("{}", imap.last_error_text());
    return;
}

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

// When finished, logout and close the connection.
let _ = imap.logout().is_ok();
let _ = imap.disconnect().is_ok();

println!("Finished.");