Why are my emails not received? Why do you recommend SMTP for my WordPress emails?

WordPress uses a PHP function for sending all emails, including those sent by HBook. However, it is frequent that the configuration of PHP mail() function on shared hosting is either not correct or simply disabled. Moreover, services as GMail, Yahoo, etc. are regularly adding new anti-spam rules, which means that chances that your emails reach a recipient with, for example, a Gmail address are lower than a couple of years ago.

We strongly recommend adding an SMTP plugin and configure it to send emails using the WordPress hosting that you already have. WordPress doesn’t offer yet built-in native SMTP configuration, so you will have to use a third-party plugin. The most popular are WP Mail SMTP, Easy WP SMTP, FluentSMTP...