private static MimeMessage CreateMimeMessage(MailConfig config)
{
MimeMessage mimeMessage = new MimeMessage();
var fromMailAddress = new MailboxAddress(config.FromName ?? config.FromAddress, config.FromAddress);
mimeMessage.From.Add(fromMailAddress);
for (int i = 0; i < config.ToAddress.Count; i++)
{
var item = config.ToAddress[i];
var toMailAddress = new MailboxAddress(item);
mimeMessage.To.Add(toMailAddress);
}
BodyBuilder bodyBuilder = new BodyBuilder()
{
HtmlBody = config.Body,
};
if (config.Attachments != null)
{
var attachment = bodyBuilder.Attachments.Add(config.FileName, config.Attachments);
//解决中文文件名乱码
var charset = "GB18030";
attachment.ContentType.Parameters.Clear();
attachment.ContentDisposition.Parameters.Clear();
attachment.ContentType.Parameters.Add(charset, "name", config.FileName);
//解决文件名不能超过41字符
foreach (var param in attachment.ContentType.Parameters)
{
param.EncodingMethod = ParameterEncodingMethod.Rfc2047;
}
}
mimeMessage.Body = bodyBuilder.ToMessageBody();
mimeMessage.Subject = config.Subject;
return(mimeMessage);
}
public static async Task <bool> SentAsync(MailConfig config)
{
try
{
var message = CreateMimeMessage(config);
using (SmtpClient client = new SmtpClient())
{
client.CheckCertificateRevocation = false;
client.ServerCertificateValidationCallback = (s, c, h, e) => true;
client.Timeout = 10 * 1000;
await client.ConnectAsync(config.Host, config.Port, SecureSocketOptions.Auto);
await client.AuthenticateAsync(config.FromAddress, config.Password);
await client.SendAsync(message);
return(true);
}
}
catch (Exception ex)
{
throw;
}
}