Send Automatic Update Emails to Your Developer
Sends WordPress core, plugin and theme auto-update emails to your developer or agency instead of the site owner, who usually does not need them.
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.