Puzzling email question....
 

Two documents sent to me by a client were not recieved. Nor could they be forwarded to me by a third party. I had to give them my back door address to recieve them. They did not go to trash, nor did the sender receive an 'undeliverable' notice.....

Can the document be encoded to not allow mail sent to specific users? I can get regular emails with no attachment from the client without problems.....:confused:

.exe are almost always blocked and even .zip's can get sent to quarantine by corporate mail systems.

But you should have received notification of that.

Exactly...this is a .doc Word document, and I recieve several per day from other clients....

I almost feel that industrial sabotage is involved, but can't figure out how....something contained within the document....

Not saying this is the case but I've seen people do whacky stuff.

Change the date on their machine before they send a piece of mail, spammers are doing this lately by sending "mail from the future", makes it sit at the top of your inbox till the date is reached.

Or "backdating" so it sits buried in your in box, they insist they sent it "days ago" and when you look again it's there.

Or intentionally putting a typo in the To field. Later when the recipient complains they never got it the sender goes into sent mail and forwards the original "bad" mail. It will get populated with the original sent date and sender just corrects typo in the text.

In Notes you can send an email in a "secure" mode, where the recipient can't forward it. I'm not sure if Outlook has this. Could they forward the email to another address?

Yep...they could forward it to anyone but me....

Spam blocking software (check your Junk mail folder) on client or server, or blacklist either on your server or an external lookup of known blacklist sites.