Configure SMTP is the spiritual successor to the wpPHPMailer plugin. While the general premise of both plugins are identical â€” allowing for the use and configuration of SMTP mailing in WordPress â€” the internals are different enough that I felt a new plugin was warranted. wpPHPMailer made the PHPMailer library available to WordPress. But since WordPress integrated the PHPMailer package into its core, a large portion of the plugin became obviated. When considering the removal of that burden from the plugin, a complete rewrite of the code, and the now-outdated (and not especially clear) naming of wpPHPMailer, Configure SMTP was born.
This plugin was updated as part of coffee2code’s 14 Days of Plugins (updated plugin #18).