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zeta
Newbie
Joined: 02 June 2010
Online Status: Offline
Posts: 4
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| Posted: 02 June 2010 at 5:58pm | IP Logged
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Hi,
I've been testing the DKIM signing
(DomainKeys.Sign) features and they work great
whenever I send(Smtp.Send) the emails.
But when it comes to using SendMailMerge
instead of Send, the emails that are being
sent are failing the DKIM test.
I execute those functions in the following
order:
smtp.Message = dk.Sign(smtp.Message, null,
privateKey, false, "selector");
smtp.SendMailMerge(null, null, dt);
And I believe that when SendMailMerge is
called, it changes the original message which
was signed to begin with, and turns it into an
unsigned one.
Is there a way to use both methods
concurrently? Or use SendMailMerge to send
signed emails?
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Igor
AfterLogic Support
Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6104
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| Posted: 03 June 2010 at 4:36am | IP Logged
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The important thing about using DomainKeys is
that you can't modify a message after signing it
- but that's exactly what SendMailMerge is
doing. So, if you'd like to use mail merge for
messages signed with DomainKeys, then you need
to run mail merge first, then sign messages and
send them out. Using msg.Merge.MergedMessage for
that looks like a perfect approach for this.
--
Regards,
Igor, AfterLogic Support
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zeta
Newbie
Joined: 02 June 2010
Online Status: Offline
Posts: 4
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| Posted: 03 June 2010 at 10:35am | IP Logged
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When you mention "run mail merge first", are you
referring to smtp.SendMailMerge or
msg.Merge.MergedMessage?
As far as I see it, using smtp.SendMailMerge
would send an email with a wrong signature. And
using msg.Merge.MergedMessage would not be able
to use the DataTable. Is there something I'm
missing here?
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Igor
AfterLogic Support
Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6104
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| Posted: 04 June 2010 at 6:44am | IP Logged
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Both methods can use any data sources
including database of course, but with
SendMailMerge that works in a simpler way we
must admit.
The approach we'd suggest is: do not sign
messages before SendMailMerge, instead use
Smtp.SendingMessage event, the message will be
fully composed at the moment, so there
shouldn't be any problems with wrong
signatures.
--
Regards,
Igor, AfterLogic Support
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zeta
Newbie
Joined: 02 June 2010
Online Status: Offline
Posts: 4
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| Posted: 04 June 2010 at 11:01am | IP Logged
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I'm having problems signing the message at the
event.
Code:
private void smtp_SendingMessage(object
sender, SmtpSendingMessageEventArgs e)
{
var dk = new DomainKeys(true);
e.MailMessage = dk.Sign(e.MailMessage,
null, privateKey, false, "selector",
DomainKeysTypes.DKIM);
}
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It seems that e.MailMessage is read-only.
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Igor
AfterLogic Support
Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6104
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| Posted: 07 June 2010 at 8:16am | IP Logged
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It is read-only indeed, but you shouldn't have
problems assigning signed message using
LoadMessage method.
Please let us know if this helps you. Thanks!
--
Regards,
Igor, AfterLogic Support
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zeta
Newbie
Joined: 02 June 2010
Online Status: Offline
Posts: 4
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| Posted: 07 June 2010 at 10:58am | IP Logged
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OK, now everything works. (use the
GetMessageRawData() after signing, people).
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Alex
AfterLogic Support
Joined: 19 November 2003
Online Status: Offline
Posts: 2206
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| Posted: 07 June 2010 at 11:12am | IP Logged
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Good to hear. Anyway, we'll think about how to make DK/DKIM signing more straight-forward during bulk mail operations.
Regards,
Alex
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