Daily Email Summary of New PHP Errors
Reads new lines in debug.log once a day and emails a short summary of fatal errors, warnings and notices with how often each occurred, so problems do not go unnoticed.
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.
Deliver Site Emails With SparkPost
Delivers all WordPress emails through SparkPost's Transmissions API instead of PHP mail or SMTP, for dependable delivery and SparkPost's event reporting.
Email Delivery Check in Site Health
Adds a test to Tools > Site Health that warns when WordPress sends mail with plain PHP mail() instead of SMTP or an API, and when an email has failed recently.
Log Failed Emails
Writes a line to the PHP error log whenever wp_mail() fails, with the subject, recipients and error message, to help debug delivery problems.
Remove the X-Mailer Header From Emails
Stops outgoing emails announcing "PHPMailer" and its version in the X-Mailer header, which reveals details about your server and can count against you in spam filters.
Send Email Through SMTP
Routes all WordPress email through an SMTP server, using credentials stored as constants in wp-config.php rather than in the database.
Send WordPress Email Through the Postmark API
Delivers all WordPress emails through Postmark's HTTP API instead of PHP mail or SMTP, for fast, reliable delivery on hosts that block outgoing mail ports.
Send WordPress Email Through the SendGrid API
Delivers all WordPress emails through SendGrid's v3 Mail Send API instead of PHP mail or SMTP, for reliable delivery and SendGrid's activity feed.
Sign Outgoing Emails With DKIM
Adds a DKIM signature to every email using a private key file and settings stored in wp-config.php, so receiving servers can verify your messages.
Write SMTP Conversation to the Debug Log
Records the conversation between WordPress and your SMTP server in the PHP error log while you troubleshoot, with passwords and login tokens blanked out.