Send a mail that has Arabic characters using Gmail API - google-api

Question

I am trying to send a mail using google.Apis.Gmail.v1 and MimeKit, but the issue is that when I use Arabic characters, the receiver receives gibberish text.
My code is below:
var mail = new MimeMessage();
mail.From.Add(new MailboxAddress("From Name", "DoNotReply#someDomain.com"));
mail.To.Add(new MailboxAddress("To Name","customerAddress#someDomain.com"));
mail.Subject = "كشف حساب من تاريخ " + dateTimePicker1.Text + " حتى تاريخ " + dateTimePicker2.Text;
var text_part = new TextPart(MimeKit.Text.TextFormat.Plain);
string body = #"<table border='1'><table style='background-color:#E5E4E2;'><tr><tr style='background-color:#1e90ff;color:#ffffff;'><td>تراكمي</td><td>دائن</td><td>مدين</td><td>البيان</td><td>المرجع</td><td>التاريخ</td></tr>";
foreach (ListViewItem lstitem in listView1.Items)
{
body += #"<tr><td>" + lstitem.SubItems[1].Text + "</td><td>" + lstitem.SubItems[2].Text + "</td><td>" + lstitem.SubItems[3].Text + "</td><td>" + lstitem.SubItems[4].Text + "</td><td>" + lstitem.SubItems[5].Text + "</td><td>" + lstitem.SubItems[6].Text + "</td></tr>";
}
body += #"</table></style></style>";
body += #"<br /><br /> المبلغ المطلوب " + sum1s.Text;
body += #"<br /><br /> Thank You";
mail.Body = new TextPart("html") { Text = body };
byte[] bytes = Encoding.UTF8.GetBytes(mail.ToString());
string raw_message = Convert.ToBase64String(bytes)
.Replace('+', '-')
.Replace('/', '_')
.Replace("=", "");
UserCredential credential;
//read your credentials file
using (FileStream stream = new FileStream(Application.StartupPath + #"/credentials.json", FileMode.Open, FileAccess.Read))
{
string path = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
path = Path.Combine(path, ".credentials/gmail-dotnet-quickstart.json");
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(GoogleClientSecrets.Load(stream).Secrets, Program.Scopes, "user", CancellationToken.None, new FileDataStore(path, true)).Result;
}
//call your gmail service
var service = new GmailService(new BaseClientService.Initializer() { HttpClientInitializer = credential, ApplicationName = Program.ApplicationName });
var msg = new Google.Apis.Gmail.v1.Data.Message();
msg.Raw = raw_message;
service.Users.Messages.Send(msg, "me").Execute();
MessageBox.Show("تم ارسال التقرير بنجاح", "Message", MessageBoxButtons.OK, MessageBoxIcon.Information);
And what I receive is:
تراكمي دائن مدين البيان المرجع التاريخ
985.00 58228.00 57243.00 رصيد منقول - 01/03/2022 00:00:00 AM
985 58228 -57243 المجموع الكلي - 11/03/2022 09:49:42 AM
المبلغ المطلوب + 985 شيكل
Thank You