Amazon SES

This section contains all articles specifically related to integrating your Gravity SMTP setup with the Amazon SES (Simple Email Service).

Hooks

This category contains the available hooks that are available to developers within Gravity SMTP in order to extend its functionality.

Getting Started

User Guides

Brevo

This section contains all articles specifically related to integrating your Gravity SMTP setup with the Brevo mail sending service.

Constants

This category contains a list of the constants that can be set within the wp-config.php file of your WordPress installation.

Standard Constants

Reference documentation for the CONSTANTS that are provided with the plugin but are not related to any specific integration.

Google / Gmail

This section contains all articles specifically related to integrating your Gravity SMTP setup with the Google / Gmail to send transactional emails.

Integrations

Mailchimp Transactional

This section contains all articles specifically related to integrating your Gravity SMTP setup with the Mailchimp Transactional.

Developer

This category contains documentation related to developer-specific use cases of the Gravity SMTP plugin. The items contained here are not required for normal operation of Gravity SMTP.

Mailgun

This section contains all articles specifically related to integrating your Gravity SMTP setup with the Sinch Mailgun mail sending service.

Microsoft 365 / Outlook

This category includes documentation related to integrating Gravity SMTP with a Microsoft 365 account outgoing email service.

Postmark

This section contains all articles specifically related to integrating your Gravity SMTP setup with the Active Campaign's Postmark mail sending service.

SendGrid

This section contains all articles specifically related to integrating your Gravity SMTP setup with the Twilio Sendgrid mail sending service.