使用MailGun (C#)将base64编码的PDF附加到RestRequest电子邮件

using System;
using System.IO;
using System.Net;
using RestSharp;

var client = new RestClient("https://api.mailgun.net/v3/{YOUR_DOMAIN}/messages");
client.Authenticator = new HttpBasicAuthenticator("api", "{YOUR_API_KEY}");
var request = new RestRequest(Method.POST);

request.AddParameter("from", "sender@example.com");
request.AddParameter("to", "recipient@example.com");
request.AddParameter("subject", "附加PDF");
request.AddParameter("text", "请查看附加的PDF文件。");

byte[] pdfBytes = Convert.FromBase64String("{YOUR_BASE64_ENCODED_PDF}");
request.AddFileBytes("attachment", pdfBytes, "file.pdf");

IRestResponse response = client.Execute(request);