Developer
Hooks
This category contains the available hooks that are available to developers within Gravity SMTP in order to extend its functionality.
Constants
This category contains a list of the constants that can be set within the wp-config.php file of your WordPress installation.
Articles
Using Constants To Set Primary And Backup Integrations
Prevent unwanted configuration changes by locking primary and backup integrations with constants.
Configuring a Gravity SMTP Integration Using Constants
This article covers the necessary constants for enabling integrations using constants.
Google Constants
Constants available for the Gravity SMTP Google Integration.
Microsoft Constants
When set, these optional constants will override settings for the Microsoft 365 / Outlook Integration in Gravity SMTP.
PHP Mail Constants
Constants available for the PHP Mail integration.
Mailchimp Transactional Constants
Constants available for the Mailchimp Transactional integration.
Amazon SES Constants
When set, these optional constants will override settings for the Amazon SES integration in Gravity SMTP. Default values are shown.
Alerts Constants
When set, these optional constants will override settings for the Alerts feature.
SendGrid Constants
Constants available for the SendGrid Integration.
GRAVITYSMTP_EVENT_LOG_ENABLED
The GRAVITYSMTP_EVENT_LOG_ENABLED constant in Gravity SMTP enables or disables the email log.