Robert wrote:
> Cheers for the help Vanguard. You are correct in thinking that I don't
> manage my own mail server, so see how I can't do anything about the delivery
> receipts. But this is still a mystery, is there anything else that outlook
> might be trying to send each time I receive a mail that has a request for a
> delivery receipt? It's not a read receipt, as I have this set up as you say,
> to ask me what to do each time (this is definitely working okay, as one of
> my contacts frequently requests read receipts & I'm asked if I want to send
> one or not).
>
> This problem only happens with outlook, as I've tried downloading my mail
> with outlook express, & when I get one of these mails requesting the
> delivery receipt nothing happens, outlook express doesn't try to send
> anything, whereas outlook does. As these receipts (or whatever it is) don't
> show in the outbox or sent items of outlook, I have no way of getting to see
> what it is, (read receipts do show in outlook express).
Outlook doesn't respond to delivery confirmation headers so that's not
what would make Outlook send a hidden "receipt" e-mail. If you
configured tracking options to Never send a read receipt then that also
would not be a cause for Outlook to send a "receipt" e-mail. If you had
that option enabled or were prompted and said Yes and you are wondering
why you NOW are still having a hidden e-mail getting sent then you might
have a read receipt stuck in your Outbox. Outlook won't show receipt
items so you cannot delete them using Outlook's GUI. You have to use
OutlookSpy or Microsoft's MDBVU32.EXE utility to directly edit the
message store (.pst file). There are instructions on how to use those
utilities but no point in posting them if that's not a current problem
for you.
The only other "receipt" method that I can think of are web beacons.
These are only effective if you render HTML-formatted e-mails. If you
read your e-mails in plain-text mode, they are worthless. If you let
Outlook render the HTML-formatted e-mails, the default option in Outlook
2003/2007 is to block externally linked content (i.e., image files from
file servers). When you render the HTML-formatted e-mail, the external
image for the web beacon gets retrieved from the file server. Since it
can be unique to a recipient, and when the file server sees that file
got retrieved, then it knows you opened that e-mail. With the default
block option in Outlook, that image doesn't get retrieved. This is how
MsgTag and other tracking services figure out if you opened your e-mails
in which they inserted a web beacon but plain-text mode or the external
image blocking option defeats that spammer trick (MsgTag doesn't do spam
but they borrowed the spammer trick, as did some other similar
services). So make sure Outlook 2003/2007 is configured to use the
Restricted Sites security zone for HTML e-mails, that the option to
block external images is enabled, and read receipts is set to Never.
Your problem is that you are still using Outlook 2002. It doesn't have
an option to block externally linked content (images which can be used
as web beacons, and not even visible when you render the HTML-formatted
e-mail). There are anti-spam programs that can remove or disable these
externally linked images. I used to use SpamPal (haven't needed it my
fresh setup as I'm not getting enough spam to bother going back to using
SpamPal again). It has an HTML-Modify plug-in. I would disabled using
that plug-in to tag e-mails as spam because its heuristic are too old
and you can't set the scoring level for the HTML nasties that might be
present in an HTML-formatted e-mail. But you can have it disabled
externally linked images. Instead of removing the image from the
HTML-formatted e-mail, it changes the <IMG> tag to an undefined <XIMG>
tag. The e-mail client won't understand that tag so the image isn't
display (which would've meant it had to get yanked from the file
server). Alas, unlike OL2003/2007, you won't have a convenient option
to click on to show the blocked external images. To see them if you
need them, you can look at the source of the HTML e-mail to see the URL
in the href parameter to go look at it with a web browser, or you could
save the HTML code in the e-mail to save in an .html file and look at it
in a web browser. Usually the externally linked images are just fluff,
anyway so I never missed them much but once in awhile I needed to see
what was in a blocked image.
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