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Email Delivery Mystery

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by stealthwifi 2 views

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Ok so here?s the scoop:

A user logs into their Outlook at home (connected to the office via HTTPS) and finds an email that did not get delivered to their Outlook in the office

(two separate PC's, Outlook 2007 on both)

I grab a copy of the email and go through the header info and try and trace the email.

The Message ID is not found in ANY of the email logs and could not be found with Message Tracking.

Other emails from this address arrived that day to others users and those are all displayed in the logs just not this one.

I have the copy of the email, and can see it was delivered but there is zero record in any SMTP, OWA, Message Tracking or any related log of this message existing.

How in the world is this possible? I see the message was delivered but there is no proof, no gap in the log files and no security breaches.

Any ideas as to why the email didn't appear in the user?s office Outlook until after they synched their home Outlook and why there is no record (besides the actual email) that this even exists?

Exchange 2003
Office box is XP Pro SP3 Outlook 2007
Home box is XP Pro SP3 Outlook 2007 connected via RPC over HTTPS

Cheers,

8 replies

by bfilmfan

What service pack is Exchange running?

When you run the search logged into and from the Exchange bridgehead server, you see no record of delivery?

by stealthwifi

Exchange 6.5 Service Pack 2

Absolutley no records of delivery of that email address on that day (or any other) to the user and no record using the Message ID.

I also checked all the logs I could find (including SMTP records) and nothing.

by stealthwifi

Wow what a weird event, turns out it was a problem with our disaster recovery provider, all straightened out now!

Cheers,

by bfilmfan

What exactly happened?

I am really curious how a message got through the system without touching the logs.

by stealthwifi

In this shop they are using an outside agency (like GoDaddy, yahoo...) to register the domain and host the website (they diddn't want to deal with it - small business)

The MX records are setup to deliver to the companys mail server then if the server is down deliver to the hosting provider for later routing.

The users home PC was hooked up via POP to the failover (hosting provider) and company (should have only been hooked up to company *naughty user*).

The email got delivered to fail over for whatever reason (still having them determine why as servers were all up at time of email) and the users home Outlook grabed it via POP before it could be re-routed to the servers. Once it was in the Inbox the next send-recieve with the server synched it up and when they logged in the next day at the office the email was there.

No logs due to the fact the Exchange server did not actaully recieved a log (synch log did not show what emails were synched)

by seanferd

That's a strange one. Probably would've been less mysterious if the user had said which server the mail had come off of. :0

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