I've tried to use zoho from my c# application. It's working fine in local host but when I hosted my application in plesk panel (india reseller windows hosting.) it stopped working.
System.Net.NetworkCredential basicCrenntial = new System.Net.NetworkCredential("
test@careergrape.com", "******");
MailAddress fromAddress = new MailAddress("
test@careergrape.com", "www.careergrape.com", System.Text.Encoding.UTF8);
smtpClient.Port = 587;
smtpClient.EnableSsl = true;
smtpClient.Host = "smtp.zoho.com";
smtpClient.UseDefaultCredentials = true;
smtpClient.Credentials = basicCrenntial;
message.From = fromAddress;//here you can set address
message.To.Add(Mail2);//here you can add multiple to
message.Subject = Subject;//subject of email
message.SubjectEncoding = System.Text.Encoding.UTF8;
message.Priority = MailPriority.High;
message.IsBodyHtml = true;//To determine email body is html or not
message.Body = @Body + FooterImg;
smtpClient.Send(message);