from small to large companies sometime suffer from the employee does not unify their mail signature . you will find one put bold font , small font and some putting their picture in email . yes i saw some putting their personal picture in email signature . Helllooooooooo why ! u want to be famous or what !.
anyway the best solution is to use automated unified signature . a solution integrated with your AD and read HR employee details … important it is controlled … so company image can be maintained .
http://www.exclaimer.com/ <—-has the solution ..