WP-CLI Command to Send a Test Email
Adds "wp wpide-mail test [email protected]" to WP-CLI, which sends a test email and prints the exact error if it fails, handy on servers without admin access.
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.