Hide attachment...

  • Thread starter Thread starter Heinz-Josef Bomanns
  • Start date Start date
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Heinz-Josef Bomanns

Hi,

i have to send an 'invisible' attachment with a mail in plain text (or
other) format. Currently i'm using

'Add hidden attachment
objAtt = .Attachments.Add(strFileName, olByValue, 0, "Hidden")

I've also tried Redemption.MAPIUtils like this:

'Set PR_ATTACHMENT_HIDDEN = True
..HrSetOneProp objAtt.MAPIOBJECT, &H7FFE000B, True

In my outbox the attachment is hidden and PR_ATTACHMENT_HIDDEN is
true, after the mail is sent and received on other machines the
attachment is sometimes visible and PR_ATTACHMENT_HIDDEN is missing,
sometimes it's invisible with PR_ATTACHMENT_HIDDEN = True present.
It's not depending on a specific Outlook version - in my VMs or VPCs
with Outlook 2002, 2003, 2007 the attachments are always invisible, on
the machine of friend "A" with 2002 and friend "B" with 2007 the
attachment is visible, on the machine of friend "C" with 2003 and 2007
the attachment is invisible. Wired... Anybody any idea, why the
attachment stays invisible on some installations and gets visible on
others? Thanks for any hint...
 
In general, that property on the attachment is set by Outlook depending on
what outlook thinks that attachment is (such as an image used by the HTML
body).
Have you tried to set the PR_ATTACH_CONTENT_ID and/or
PR_ATTACH_CONTENT_LOCATION properties to trick Outlook into thinking that it
is an imahe used by the HTML body?

--
Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool
-
 
Hallo Dmitry,
In general, that property on the attachment is set by Outlook depending on
what outlook thinks that attachment is (such as an image used by the HTML
body).
Have you tried to set the PR_ATTACH_CONTENT_ID and/or
PR_ATTACH_CONTENT_LOCATION properties to trick Outlook into thinking that it
is an imahe used by the HTML body?
Click to expand...

I set PR_ATTACH_CONTENT_ID, PR_ATTACH_CONTENT_LOCATION and
PR_ATTACHMENT_HIDDEN - on the sent mail this properties are present,
but on the destination machine after receiving the mail all this
properties are missing, so it looks like some Outlook installations
are deleting them when receiving the mail...
 
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