FluentCRM uses the wp_mail() function to broadcast all the emails that is PHP-based mailer. There are various ways to deliver emails from WordPress. The SMTP Protocol, API-based 3rd party delivery providers, and direct PHP-based sending require SMTP Port 25 to be opened from the WordPress hosting server. Below is a screenshot of when no SMTP plugins are used on the website.
SMTP Plugins like Fluent SMTP improves your WordPress mail by intercepting the wp_mail and then connecting with your email service providers to ensure deliverability. It allows sending emails directly via SMTP. API-based providers like Google Workplace, Office365, Sendgrid, AWS SES, etc. When you install the Fluent SMTP plugin on your website and configure email delivery connections you will see them listed in the FluentCRM SMTP Dashboard like the below screenshot.
Fluent SMTP Settings #
Bounce Handlers #
To configure Bounce Handlers for available services please check each relevant documentation: