WP Mail SMTP Mailer (by WPForms) review
WP Mail SMTP is a popular WordPress plugin developed by WPForms, which helps improve the email deliverability of your WordPress website.
Failure notifications: a WordPress mailer plugin feature
Failure notifications are a feature that provides notifications for failed email deliveries, which helps you quickly identify and fix any email sending issues. This feature can help you maintain good email deliverability rates and ensure that your email campaigns are successful. Notifications can be sent by email, SMS, slack, or other communication channel, depending on the plugin.
The mailer plugins below support the Failure notifications feature.