Description
For advanced configurations and multisite setups, you can define a Primary integration for Gravity SMTP using constants.
Usage
define( 'GRAVITYSMTP_INTEGRATION_PRIMARY', 'integration_name' );
Integrations
amazon
brevo
generic
google
mailchimp
mailgun
microsoft
phpmail
postmark
sendgrid
zoho
Placement
Constants should be set in wp-config.php.
Since
This constant was added in Gravity SMTP version 1.6.1