Filters
Discover the different filter hooks available within Gravity SMTP. You can use filters to modify data to better match your particular needs.
Actions
Learn about the different action hooks available within Gravity SMTP. Action hooks allow you to perform additional actions when an event takes place.
Hooks
This category contains the available hooks that are available to developers within Gravity SMTP in order to extend its functionality.
Standard Constants
Reference documentation for the CONSTANTS that are provided with the plugin but are not related to any specific integration.
Amazon SES
This section contains all articles specifically related to integrating your Gravity SMTP setup with the Amazon SES (Simple Email Service).
Getting Started
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.
User Guides
Integrations
Elastic Email
This section contains all articles specifically related to integrating your Gravity SMTP setup with Elastic Email
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.
Emailit
This section contains all articles specifically related to integrating your Gravity SMTP setup with Emailit
Google / Gmail
This section contains all articles specifically related to integrating your Gravity SMTP setup with the Google / Gmail to send transactional emails.
Mailchimp Transactional
This section contains all articles specifically related to integrating your Gravity SMTP setup with the Mailchimp Transactional.
MailerSend
This section contains all articles specifically related to integrating your Gravity SMTP setup with MailerSend
Mailgun
This section contains all articles specifically related to integrating your Gravity SMTP setup with the Sinch Mailgun mail sending service.
Mailjet
This section contains all articles specifically related to integrating your Gravity SMTP setup with the Mailjet 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.
Resend
This section contains all articles specifically related to integrating your Gravity SMTP setup with Resend
SendGrid
This section contains all articles specifically related to integrating your Gravity SMTP setup with the Twilio Sendgrid mail sending service.
SMTP2GO
This section contains all articles specifically related to integrating your Gravity SMTP setup with SMTP2GO
SparkPost
This section contains all articles specifically related to integrating your Gravity SMTP setup with the SparkPost sending service.
Zoho Mail
This section contains all articles specifically related to integrating your Gravity SMTP setup with the Zoho Mail sending service.
Articles
gravitysmtp_after_email_suppressed
Fires after an email has been successfully suppressed in the Gravity SMTP suppression list. The gravitysmtp_after_email_suppressed action allows you to perform custom logic after adding an email to the suppression database.
gravitysmtp_abort_email_suppression
The gravitysmtp_abort_email_suppression filter prevents developers from adding an email to the suppression list.
gravitysmtp_delete_log_on_deactivate
The gravitysmtp_delete_log_on_deactivate filter allows developers to control whether the debug log should be deleted when debug logging is disabled.
Configuring a Gravity SMTP Integration Using Constants
This article covers the necessary constants for enabling integrations using constants.
Updating Gravity SMTP
Here’s how to keep Gravity SMTP secure and reliable by staying on top of regular updates
Risks when using Google and Microsoft Integrations
This article explains the limitations of using Google and Microsoft accounts for sending emails through Gravity SMTP.
Resend Emails
This article explains how to resend emails and the prerequisites for resending emails from the email log in Gravity SMTP.
Authenticating Your Domain In Mailjet
This article outlines steps for authenticating a domain in your Mailjet account.
Obtaining Your Mailjet API Key
This article outlines the steps for generating a new API key in your Mailjet account.
Connecting To Mailjet
Overview of Mailjet Integration settings and connection instructions.