Slightly puzzled... What aspect(s) of sending email via theSmtpClientclass
do not provide enough control for you...?
Thanks for attention, I'm developing some prtotocol called ECE over e-
mail. ECE has been invented to relate so many companies/organizations
via their ERP software. Each software developer is supposed to
implement ECE in its software. One of software developers that we had
to communicate with parses just 18 first lines of each email. Since in
the ECE protocol a header named "X-ECE_SEND" must be inserted in the
email and our generated email contains this header after line 18, so
they can not recognize our email as a valid ECE email. And I had to
find some way to insert this header in the first 18 lines of email. I
know the problem may be in MailMessage class but I guess SmtpClient
may be involved too. Here is my code for generating and sending mail
and a typical mail message produced:
------------------------------------------------------------------------------------------------------------------------------------------------------------
Generating mail itself:
public static MailMessage CreateMail(string
attachmentFileName, string letterSubject, List<MailAddress> receivers,
MailAddress sender, string body)
{
System.Net.Mail.MailMessage mail = new
System.Net.Mail.MailMessage();
if (!string.IsNullOrEmpty(attachmentFileName))
{
Attachment attachment = new
Attachment(attachmentFileName);
mail.Attachments.Add(attachment);
}
NameValueCollection headers = new NameValueCollection();
mail.Body = body;
mail.From = sender;
foreach (MailAddress addr in receivers) mail.To.Add(addr);
mail.BodyEncoding = Encoding.UTF8;
mail.DeliveryNotificationOptions =
DeliveryNotificationOptions.OnSuccess;
mail.Headers.Add("X-ECE_SEND", "1.01");
mail.Subject = letterSubject;
return mail;
}
------------------------------------------------------------------------------------------------------------------------------------------------------------
Sending it:
public static void SendMail(MailMessage mail, bool enableSsl)
{
SmtpClient client = new SmtpClient();
client.EnableSsl = enableSsl;
client.Send(mail);
client = null;
}
------------------------------------------------------------------------------------------------------------------------------------------------------------
A typical generated email:
Delivered-To: (e-mail address removed)
Received: by 10.103.12.5 with SMTP id p5cs383851mui;
Sat, 23 Aug 2008 00:28:32 -0700 (PDT)
Received: by 10.210.65.17 with SMTP id n17mr2831948eba.
92.1219476512470;
Sat, 23 Aug 2008 00:28:32 -0700 (PDT)
Return-Path: <
[email protected]>
Received: from ey-out-2122.google.com (ey-out-2122.google.com
[74.125.78.26])
by mx.google.com with ESMTP id 7si2421867eyb.
1.2008.08.23.00.28.31;
Sat, 23 Aug 2008 00:28:32 -0700 (PDT)
Received-SPF: pass (google.com: domain of (e-mail address removed)
designates 74.125.78.26 as permitted sender) client-ip=74.125.78.26;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of
(e-mail address removed) designates 74.125.78.26 as permitted sender)
[email protected]; dkim=pass (test mode)
[email protected]
Received: by ey-out-2122.google.com with SMTP id 25so68580eya.49
for <
[email protected]>; Sat, 23 Aug 2008 00:28:31 -0700
(PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=gmail.com; s=gamma;
h=domainkey-signature:received:received:x-ece_send:mime-
version:from
:to:subject:content-type:date:message-id;
bh=3cBPNRMwyp8SEDcCgowEBIREX5AlIk4sOjUZjQdGm1A=;
b=OOY7H1UVJaBX55dEBEzbDUmncmJzdUu66F
+Gl8Mw6ZZhMskvALbwcAIrRuF9psMMka
fI1CpvJcxQcvfrDOaklZPkiqPZ1P0+LqgEncXhZOXrv9GUJVBw9HUSkEXXdYEW1wcbB/
Qub/TL+qp5HsDeU8m+bJsm4pdgLm6AMFWRcws=
DomainKey-Signature: a=rsa-sha1; c=nofws;
d=gmail.com; s=gamma;
h=x-ece_send:mime-version:from:to:subject:content-type:date
:message-id;
b=FM1ToaPqdjn8tk+/OovQX1BM91EYJNmRLu6bz98OdgC/T9NxKBeUrp1C/
jdzQeUDIm
AGgGJ20y18ko7MDrUYCwEyvjIDyl+UHGDkWvG0oI
+grdvGnMD09Tbu8HhQU1onGLx0UR
0EYC0eYsP4wuVzYnmSf0x5drwIG/N0ZGe347g=
Received: by 10.210.125.7 with SMTP id x7mr2792181ebc.
184.1219476510385;
Sat, 23 Aug 2008 00:28:30 -0700 (PDT)
Return-Path: <
[email protected]>
Received: from programmer07 ( [91.184.73.21])
by mx.google.com with ESMTPS id p10sm9113630gvf.
7.2008.08.23.00.28.26
(version=TLSv1/SSLv3 cipher=RC4-MD5);
Sat, 23 Aug 2008 00:28:29 -0700 (PDT)
x-ece_send: 1.01
mime-version: 1.0
from: =?utf-8?B?2LTYsdqp2Kog2YHYsdin2qnZhti0?= <
[email protected]>
to: =?utf-8?B?
2qnYtNiq24zYsdin2YbbjCDYrNmF2YfZiNix24wg2KfYs9mE2KfZhduMINin24zYsdin2YY=?
=
<
[email protected]>
subject: =?utf-8?B?2KrYs9iqINm+2LHZiNiq2qnZhCBFQ0U=?=
content-type: multipart/mixed;
boundary=--boundary_1_471776fe-8fd3-46ee-9de3-30498d59dd48
Date: Sat, 23 Aug 2008 00:28:29 -0700 (PDT)
Message-ID: <
[email protected]>
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