When choosing an email log plugin, make sure it’s easy to see if any of your emails have failed. Several plugins implement a red or green indicator icon to make this clearer. A link to resend emails directly from the log is also helpful if any have failed. You may want to find a particular email your site has sent or all emails sent within a specific time period. So log search and filter functions can come in very handy. To get better insight into your email deliverability, look for a plugin that offers tracking and reports.