benéÝŠÇ.²È¨žÉ¢rº,¡û\¢

Our company uses a program created with CDO to send emails, however we are
noticing some recipients are having the emails blocked and considered spam by
their email clients and email servers. Does anyone know why this is
happening and a way to fix it? We are using CDO 2000, is there a new version
of CDO that would help?

dan mitchell

Most likely is that it's the content of your mail that gets filtered.

Mail can be classified as spam even if it's sent by a user typing into
Outlook the client, with Extended MAPI, CDO1.21, CDO2000, CDOEX, SMTP
mail typed into a raw telnet session, anything -- it's very unlikely [1]
that it's the API you're using to send it that's the problem.

(in some testing we did ourselves, where we populate an Outlook send-
mail dialog and then the user hits 'send', googlemail, yahoomail,
postini, a couple of other filters I forget now, all passed it through
okay, but hotmail's filtering decided the message we sent out was spam)

-- dan

[1] not impossible, of course -- if the spam filter has been trained to
spot some distinctive header field from CDO2K-generated mail and thinks
that that's always spam, then you'll see this. I would be amazed if this
were the case, though.

benéÝŠÇ.²È¨žÉ¢rº,¡û\¢

Thanks for the quick response. I think we have the latest CDO, but I am
pretty sure that the problem is with CDO. The program we use simply takes an
email that has all the email addresses of all the people we want to send
information to and basically sends out emails one by one so that when the
recipient gets the mail they do not see everyone else who got the mail. I
have tested our program and when I send an email to my hotmail account from
Outlook(my company email) I get it with no problem, however if I use the
program and send it to my hotmail account (I use my company email account as
the sender) then hotmail puts it in the junk folder. By the way my test
emails I sent only had a subject of "Test" and inside the text I put "test",
so I dont think that should cause hotmail to consider it spam. It seems that
for some reason the CDO sent message raises a flag in hotmail, and I was
wondering if there was a way to get around it.

dan mitchell

Fair enough, I guess it _is_ something about CDO2K that gets recognised
-- I'm surprised, I'll admit, but obviously you're right. That said,
there's still nothing you can do about it -- CDO generates the messages
and sends them off, and if something in the way it's generating them is
something that Hotmail doesn't like, there's not much you can do about it.


Assuming by "CDO 2000" you mean "CDO for windows 2000", then you have
control over the header fields, so you could try playing around in there
to see what's going on and if you can get Hotmail to be happy with it --
compare the exact contents of the message that arrives from Outlook and
the one that arrives from your code, see what's different, and see if
you can get the two to be the same by tweaking things.

I can't imagine what it could be that Hotmail doesn't like, though it's
not impossible that Hotmail is filtering mail sent with that particular
API because it assumes that all mail sent that way is bulk mail and bulk
mail is more likely to be spam than mail sent from individual users. I'm
guessing, of course -- the exact details of what Hotmail decides is and
isn't spam are presumably closely guarded secrets, for obvious reasons.

If that doesn't work, then at worst, you can always drop back to
sending stuff with raw SMTP -- that way you have absolute control over
every last byte so you can fiddle with it as much as necessary, it's
just more work. See (for instance)
http://www.codeguru.com/Cpp/I-N/internet/email/article.php/c3427

-- dan

benéÝŠÇ.²È¨žÉ¢rº,¡û\¢

I guess there is nothing I can do, I have looked all over the web for help
on this and nothing has worked. Funny thing is in the program I even specify
in the message configuration to use our companies exchange server as the smtp
server(same one that Outlook uses), and it still sends the mail to the junk
folder. Our email servers DNS record has reverse lookup so hotmail should be
able to see who sent it and also we are not black listed, so I am still
confused as to what exactly the problem is. I guess youre right Dan, there
is no fix for this problem. Thanks for the help.

stefan engelbert

Hi Ben,

after you created your CDO mail just convert it to a ado stream,
remove the x-mailer, add xsender and xreiver and save the mail to pickup.
might sound complicated - but its not ......

You will see your emails will now reach the hotmail mailbox ;-)

benéÝŠÇ.²È¨žÉ¢rº,¡û\¢

Could you explain or show how to do this, I would really appreciate it. I am
really new to this.

Thanks

frank hellmann

Hi Ben,

you need to remove some default CDO Header from the Mails to be able to do
that.
Have a look at our POP3SDK (Its freeware). It has the functions you need.
Some examples how to use it you find in
http://www.aloaha.com/download/pop3sdk.txt

Kind Regards
Frank Hellmann

"Ben" <Ben@discussions.microsoft.com> schrieb im Newsbeitrag
news:6EAB49E6-FE5E-420F-A7BC-EE60F564A490@microsoft.com...


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benéÝŠÇ.²È¨žÉ¢rº,¡û\¢

I donwloaded the file, but I only found two files in it, how do I install the
SDK?