OSX Maill.app signature plugin

[login to view URL] 6.x signature sync with Dropbox directory. The Case: A company has several employees, they want all employees to have the same e-mail signature. A company signature file (clear text of html) is located in a local shared dropbox folder or any other cloud storage. An e-mail signature consists of two parts: 1. Employee 2. Company part (synced from shared dropbox directory) See attachment for more details. Deliverable: - good user interface in [login to view URL] preferences - Source code - Compiled plugin code + installation ( .dmg file)