/// <summary>
///
/// </summary>
/// <returns></returns>
private async Task <SmtpClient> InitSmtpClient()
{
var model = await _emailConfigService.GetConfig();
var smtpClient = new SmtpClient {
ServerCertificateValidationCallback = (s, c, h, e) => true
};
smtpClient.Connect(model.SmtpServer, model.SmtpPort,
!model.SmtpEnableSSL ? SecureSocketOptions.None : SecureSocketOptions.Auto);
// since we don't have an OAuth2 token, disable
// the XOAUTH2 authentication mechanism.
smtpClient.AuthenticationMechanisms.Remove("XOAUTH2");
// Если
if (!string.IsNullOrEmpty(model.SmtpLogin) && !string.IsNullOrEmpty(model.SmtpPassword))
{
smtpClient.Authenticate(model.SmtpLogin, model.SmtpPassword);
}
return(smtpClient);
}
/// <summary>
/// Непосредственно отправка письма
/// </summary>
/// <param name="mailTo">Кому e-mail, разделен ","</param>
/// <param name="mailCc">Копия e-mail, разделен ","</param>
/// <param name="mailBcc">Скрытая копия e-mail, разделен ","</param>
/// <param name="subject">Тема</param>
/// <param name="message">Тело</param>
/// <param name="encoding">Кодировка</param>
/// <param name="isHtml">Это HTML</param>
private async Task SendEmail(string mailTo, string mailCc, string mailBcc, string subject, string message, Encoding encoding, bool isHtml)
{
var modelSettings = await _emailConfigService.GetConfig();
var to = new string[0];
var cc = new string[0];
var bcc = new string[0];
if (!string.IsNullOrEmpty(mailTo))
{
to = mailTo.Split(',').Select(x => x.Trim()).ToArray();
}
if (!string.IsNullOrEmpty(mailCc))
{
cc = mailCc.Split(',').Select(x => x.Trim()).ToArray();
}
if (!string.IsNullOrEmpty(mailBcc))
{
bcc = mailBcc.Split(',').Select(x => x.Trim()).ToArray();
}
// HACK добавить проверку корректности E-mail ?
var mimeMessage = new MimeMessage();
// от кого письмо имя и обратный адрес
mimeMessage.From.Add(new MailboxAddress(modelSettings.SmtpEmailDisplay, modelSettings.SmtpEmail));
// кому
foreach (string tos in to)
{
mimeMessage.To.Add(MailboxAddress.Parse(tos));
}
// копия
foreach (string ccs in cc)
{
mimeMessage.Cc.Add(MailboxAddress.Parse(ccs));
}
// скрытая копия
foreach (string bccs in bcc)
{
mimeMessage.Bcc.Add(MailboxAddress.Parse(bccs));
}
// тема письма
mimeMessage.Subject = subject;
// тело письма
TextPart body;
body = isHtml ? new TextPart(TextFormat.Html) : new TextPart(TextFormat.Text);
// кодировка
body.SetText(encoding, message);
// тело письма
mimeMessage.Body = body;
using (var client = await _mailKitSmtpClient.SmtpClient())
{
await client.SendAsync(mimeMessage);
await client.DisconnectAsync(true);
}
}