Hourly Limit on Outgoing Emails
Caps how many emails the site can send per hour and stops the rest, which protects your mail account and domain reputation if a form or plugin is abused to send spam.
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.
Limit the Number of Recipients per Email
Refuses to send any single email to more than a set number of recipients across To, CC and BCC, which stops a compromised form or plugin from blasting your contacts.