Why isn't the default Signature set with DeploymentPro?
DeploymentPro does not currently set the New Messages or Replies/Forwards default Signatures. They need to be set manually.
These can be set by users, by following the steps below:
From Outlook main window, click File > Options > Mail > Signatures
In the Replies/forwards list, choose the signature that you want to be added automatically (auto sign) when you reply to or forward messages. Otherwise, accept the default option of (none).