Add a Signature to Every WordPress Email
Appends a short signature, such as your company name, address and support link, to the bottom of every email the site sends, in both plain-text and HTML emails.
Snippet Library
Email snippets for WordPress
Snippets for the emails WordPress sends: change the sender name and address, add a Reply-To header, send HTML email and turn off notifications you do not need. For site owners who want their messages to arrive and look right.
Send Plain WordPress Emails in a Branded HTML Layout
Wraps the plain-text emails WordPress sends (password resets, notifications, form plugins) in a simple HTML layout with your site name and clickable links.