Exchange 2010 / Outlook 2007

Hi Experts,

Some of my users are having weird behavior with their mailbox... They got old e-mails randomly sent out as themselves to the same people on those old e-mails.  Could you please give me a lead on how to troubleshoot this?  I have asked the users to change their passwords on a different computers than those that they are using; turn off their current machines until I can run some scan...  Please advise.
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swgitAsked:
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suriyaehnopConnect With a Mentor Commented:
Could you verify if the old email stuck on Outbox folder. Verify in Outlook client and as well as in Outlook Web App
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DeadmanConnect With a Mentor IT ConsultantCommented:
Disconnect the internet connection to those user who had problem. Run malware and antivirus full scan all systems. I have faced same issue with one user. I'm surely say that might be a malware or virus at client machine.
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swgitAuthor Commented:
I was thinking that it's probably related to malware, and have asked users to turn off their machines and not to use them, until they're back from biz trip.  They don't have anything in their Outbox or Draft...
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SreRajConnect With a Mentor Commented:
Hi,

Please check on your Hub Transport Servers and see if any mails are getting queued and release or remove them based on their timestamp. It could be that mails are getting queued and users are retrying the queued mails and later on queued mails are getting delivered.
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swgitAuthor Commented:
the queue is empty... and when I said old e-mails... they're randomly picked from a month, 3 months.. 5-6 months ago...  I have not heard from anyone else besides a couple of these users... so their machines might have been compromised, infected... I'll update you on this.  Thanks.
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swgitAuthor Commented:
the users machines were in good shape, no e-mails stuck... not sure what happened.  thank you for your inputs!
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