If your site is using the MailOptin plugin which is used for lead generation, email automation, and newsletters. It is recommended to use a solid well built external platform for email automation and sending out newsletters than using a plugin that can cause performance issues on your site and cause database bloat. MailOptin WordPress Plugin The plugin will store data using the following custom database tables; wp_mo_campaign_log wp_mo_campaign_logmeta wp_mo_conversions wp_mo_email_campaignmeta wp_mo_email_campaigns wp_mo_optin_campaignmeta Wp_mo_optin_campaigns When the plugin is deactivated and deleted it will not remove the custom database tables that will be bloating out the site’s database. The database tables can