CampaignDot a WordPress plugin by francois09 and geraldmorales allows you to create Email signatures for each member of your WordPress website, integrated into in WordPress user’s page.
You can send each user’s signature by Email to copy and paste into their signature in any mail client (Outlook, Mail, Thunderbird, Webmail…). It is also possible to include a legal notices and a banner in the signature.
With the banner you can avertise an event. Each display of the banner and every click is recorded in the database and generate detailled statistics including the type of platforms used to read emails, and what user did the best score last month, quarter and year.
Download and more info: https://wordpress.org/plugins/campaigndot/