Rust Requires Chilkat v11.0.0+

Outlook Send Email

See more Outlook Examples

This example sends a simple plain-text email. Other examples exist for:

• Sending HTML email.
• Sending HTML email with embedded images.
• Sending email with attachments.
• Sending HTML email with embedded images and attachments.

Rust

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

let http = chilkat::Http::new();

// Use your previously obtained access token here:
// See the following examples for getting an access token:
//    Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
//    Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
//    Refresh Access Token (Azure AD v2.0 Endpoint).
//    Refresh Access Token (Azure AD Endpoint).

let json_token = chilkat::JsonObject::new();
if json_token.load_file("qa_data/tokens/microsoftGraph.json").is_err() {
    println!("{}", json_token.last_error_text());
    return;
}

http.set_auth_token(&json_token.string_of("access_token").unwrap_or_default());

// To send email, we'll POST to the following endpoint:
// 
// POST /users/{id | userPrincipalName}/sendMail
// 
// (The special keyword "me" may be used in place of a principal name.)
// 

// The body of the POST request contains JSON that specifies the email subject, body,
// recipients, etc.  This example will build the following JSON email:
// 

// 	{
// 	  "message": {
// 	    "subject": "Meet for lunch?",
// 	    "body": {
// 	      "contentType": "Text",
// 	      "content": "The new cafeteria is open."
// 	    },
// 	    "toRecipients": [
// 	      {
// 	        "emailAddress": {
// 		  "name": "Chilkat Software",
// 	          "address": "admin@chilkat.io"
// 	        }
// 	      },
// 	      {
// 	        "emailAddress": {
// 	          "address": "chilkat.support@gmail.com"
// 	        }
// 	      }
// 	    ],
// 	    "ccRecipients": [
// 	      {
// 	        "emailAddress": {
// 		  "name": "Chilkat Blog",
// 		  "address": "admin@cknotes.com"
// 	        }
// 	      }
// 	    ]
// 	  },
// 	  "saveToSentItems": true
// 	}
// 

// Build the above JSON.
let json = chilkat::JsonObject::new();
let _ = json.update_string("message.subject", "Meet for lunch?");
let _ = json.update_string("message.body.contentType", "Text");
let _ = json.update_string("message.body.content", "The new cafeteria is open.");
let _ = json.update_string("message.toRecipients[0].emailAddress.name", "Chilkat Software");
let _ = json.update_string("message.toRecipients[0].emailAddress.address", "admin@chilkat.io");
let _ = json.update_string("message.toRecipients[1].emailAddress.address", "chilkat.support@gmail.com");
let _ = json.update_string("message.ccRecipients[0].emailAddress.name", "Chilkat Blog");
let _ = json.update_string("message.ccRecipients[0].emailAddress.address", "admin@cknotes.com");
let _ = json.update_bool("saveToSentItems", true);

// Send the HTTP POST (i.e. send the email)
let resp = chilkat::HttpResponse::new();
if http.http_json("POST", "https://graph.microsoft.com/v1.0/me/sendMail", &json, "application/json", &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

// The send succeeded if the response status code = 202.
// In the success case, there is no response body.  (We just get the response code to know that it succeeded.)
if resp.status_code() != 202 {
    let _ = json.load(&resp.body_str());
    json.set_emit_compact(false);
    println!("{}", json.emit().unwrap_or_default());
    println!("Failed, response status code = {}", resp.status_code());
} else {
    println!("Outlook Mail Sent.");
}