public void Send(SmtpConfig smtp) { SmtpClient c = new SmtpClient(smtp.SmtpServer, smtp.SmtpPort); c.DeliveryMethod = SmtpDeliveryMethod.Network; c.EnableSsl = smtp.UseSSL; MailMessage mail = new MailMessage(CharsetList.NormalizeMailAddress(this.From), CharsetList.NormalizeMailAddress(this.To)); Encoding bodyEnc = CharsetList.GetAppropriateCharset(this.Body); TransferEncoding bodyTran = SmtpCharsetList.GetTransferEncoding(bodyEnc); byte[] bodyData = bodyEnc.GetBytes(this.Body); MemoryStream ms = new MemoryStream(bodyData); AlternateView alt = new AlternateView(ms, new ContentType("text/plain; charset=" + bodyEnc.WebName)); alt.TransferEncoding = bodyTran; if (Str.IsEmptyStr(this.Body) == false) { mail.AlternateViews.Add(alt); } mail.Body = ""; mail.BodyEncoding = bodyEnc; // HTML メールの場合 if (Str.IsEmptyStr(this.BodyHtml) == false) { Encoding htmlEnc = CharsetList.GetAppropriateCharset(this.BodyHtml); TransferEncoding htmlTran = SmtpCharsetList.GetTransferEncoding(htmlEnc); byte[] htmlData = htmlEnc.GetBytes(this.BodyHtml); ms = new MemoryStream(htmlData); AlternateView alt2 = new AlternateView(ms, new ContentType("text/html; charset=" + htmlEnc.WebName)); // リソースファイル foreach (LinkedResource a in LinkedResourceList) { alt2.LinkedResources.Add(a); } mail.AlternateViews.Add(alt2); } // 添付ファイル foreach (Attachment a in AttatchedFileList) { mail.Attachments.Add(a); } Encoding subjectEnc = CharsetList.GetAppropriateCharset(this.Subject); byte[] subjectData = subjectEnc.GetBytes(this.Subject); string subjectText = string.Format("=?{0}?B?{1}?=", subjectEnc.WebName.ToUpper(), Convert.ToBase64String(subjectData, Base64FormattingOptions.None)); if (Str.IsAscii(this.Subject)) { subjectText = this.Subject; } mail.Subject = subjectText; if (this.ReplyTo != null) { // mail.ReplyTo = this.ReplyTo; mail.ReplyToList.Add(this.ReplyTo); } foreach (MailAddress cc in CcList) { mail.CC.Add(cc); } foreach (MailAddress bcc in BccList) { mail.Bcc.Add(bcc); } mail.Headers.Add("X-Mailer", XMailer); mail.Headers.Add("X-MSMail-Priority", MSMailPriority); mail.Headers.Add("X-Priority", MailPriority); mail.Headers.Add("X-MimeOLE", MimeOLE); c.Send(mail); }