我使用下面显示的 Send 方法随机遇到异常。我得到的例外是:
Exception information:
Exception type: System.Net.Mail.SmtpException
Exception message: Failure sending mail.
Inner exception information (level 1):
Exception type: System.IndexOutOfRangeException
Exception message: Index was outside the bounds of the array.
我的方法如下所示:
public void Send(string from, List<string> to, string subject, string body, List<string> attachments)
{
var email = new MailMessage();
var server = new SmtpClient();
// Add each mail property
email.From = new MailAddress(from);
foreach (var t in to)
email.To.Add(t);
email.Subject = subject;
email.IsBodyHtml = true;
email.Body = body;
foreach (var a in attachments)
email.Attachments.Add(new Attachment(a));
server.Send(email);
}
在调用此覆盖之前,我正在验证目标列表和附件列表都至少有一个值并且该值是有效的。
异常发生在 sever.Send 上。