Amazon SES

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

Standard Constants

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

Hooks

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

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.

Getting Started

Google / Gmail

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

User Guides

Mailgun

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

Integrations

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.

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.

Articles

GRAVITYSMTP_DEBUG_LOG_RETENTION

The GRAVITYSMTP_DEBUG_LOG_RETENTION constant in Gravity SMTP defines the number of days to retain logs.

GRAVITYSMTP_DEBUG_LOG_ENABLED

The GRAVITYSMTP_DEBUG_LOG_ENABLED constant in Gravity SMTP enables or disables the email log.

Gravity SMTP Capabilities

List of capabilities that Gravity SMTP introduces to the WordPress role system.

Google Constants

Constants available for the Gravity SMTP Google Integration.

Connecting to Google / Gmail

This article describes the process of integrating Gravity SMTP on your website using Google’s API to ensure secure authentication for your site’s emails.

SendGrid Constants

Constants available for the SendGrid Integration.

Custom SMTP Constants

Constants available for the Custom SMTP integration.

Postmark Constants

Constants available for the Postmark Integration.

Brevo Constants

Constants available for the Postmark Integration.

Mailgun Constants

Constants available for the Mailgun Integration.