I also like WP Rocket's database cleaning tool: https://wp-rocket.me/. Source: about 1 year ago

This will have a serious impact based on that kind of database. A good caching plug-in like WP Rocket should help with the overheads and speed things up. If you have server side caching like memcached or lighspeed make sure you are utilising it. Source: about 1 year ago

Purchase a license from the WP Rocket website (https://wp-rocket.me/). Source: about 1 year ago

Sounds like your colleague bought a nulled/"GPL free" copy of WP Rocket - probably not purchased from https://wp-rocket.me/. Source: over 1 year ago

One of the most beloved WordPress caching plugins is WP Rocket. They’ve managed to take something complex and make it extremely easy, yet still powerful and configurable. They have also made it easy to integrate with a CDN in just a few clicks. - Source: dev.to / over 1 year ago

Depends on the infrastructre setup, but if you're able to specify smtp server the backend will use you can you something like https://github.com/mailhog/MailHog or https://github.com/rnwood/smtp4dev to catch any sent email, regardless of email address and read it via the respective api. Both mailhog and smtp4dev have decent api documentation. Source: over 1 year ago

If so you could check out smtp4dev, it gives you a locally hosted client that you can use to intercept any mail send out by your app and displays them in a nice web based gui interface so can see what they look like. Source: almost 2 years ago