Phantom Signature Exchange 2010

Hi,
I want to remove an auto-signature from a single mailbox.  It is a domain policy created by somebody that is no longer here but I can't find out where the policy is originating from.  There are no rules defined under the Transport Rules box where this is normally configured.  I do, however, see the GPO enabled to disable users from changing their signatures.  Where in the heck is this thing coming from??

Thanks!
JasonAsked:
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Simon Butler (Sembee)ConsultantCommented:
Transport rules or an app are the usual sources. AV/Antispam software that integrates with Exchange can do it as well.
Does the signature apply through OWA/ActiveSync as well?
If not, then it is probably something client side being deployed via Outlook. If it does, then it is server side.

Simon.
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Roshan MohammedCloud Engineering OfficerCommented:
have you checked on the local security policy on the exchange server itself.
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AmitIT ArchitectCommented:
Run rsop.msc and check the gpo applied at user level facing this issue.
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Adam (CodeTwo Software)IT AnimalCommented:
Hi jhill777att,

Sembee hinted at 3rd party signature managers. Most (e.g. ours) are based on Transport Agents. So if you don't feel like scrolling through Control Panel, try running get-transportagent in Exchange Management Shell. This will produce a list of transport agents on your server - you can paste the list here for me to take a look.

Best regards,
Adam
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JasonAuthor Commented:
It is a 3rd party app but nobody knows what it is.  The mail disclaimer routing agent and the transport rule agent are enabled.  The transport rule in exchange is just a mailer daemon hide all mailer daemon emails.
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JasonAuthor Commented:
I think I just found it.   It's called Exclaimer.
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Simon Butler (Sembee)ConsultantCommented:
It is pretty easy to exclude users in Exclaimer. The app should be installed on the server, if you cannot see it then look in add/remove programs to see which version you have then contact Exclaimer to get the installer and reinstall it.

Simon.
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JasonAuthor Commented:
Yeah, I added the exemption.  Thanks for pointing me in the right direction.
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