Getting Started
Filters
Discover the different filter hooks available within Gravity SMTP. You can use filters to modify data to better match your particular needs.
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.
Introduction
A collection of guides that explain what Gravity SMTP is, how it works, and how to set it up for the first time after installation.
Constants
This category contains a list of the constants that can be set within the wp-config.php file of your WordPress installation.
Actions
Learn about the different action hooks available within Gravity SMTP. Action hooks allow you to perform additional actions when an event takes place.
Dashboard And Logs
Learn how to navigate the Gravity SMTP dashboard and review all email related activity, including logs, tracking email and details.
Brevo
This section contains all articles specifically related to integrating your Gravity SMTP setup with the Brevo mail sending service.
User Guides
Monitoring
Configure ralerts and monitoring tools that notify you when email delivery issues occur.
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.
Tools And Settings
Explore the available tools, system utilities, and configuration options for managing Gravity SMTP, diagnosing issues, and controlling how your site sends email.
Emailit
This section contains all articles specifically related to integrating your Gravity SMTP setup with Emailit
Reference
Access version history, update instructions, and reference materials for frequently asked questions and product changes.
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.
Troubleshooting
Improve email deliverability with recommended best practices and access troubleshooting resources for resolving common problems.
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
Alerts Constants
When set, these optional constants will override settings for the Alerts feature.
How To Send Emails From An Alias In Google / Gmail
This article explains configuring Gravity SMTP to send emails using a Gmail alias from a Google / Gmail account.
Zoho Mail Constants
Constants available for the Gravity SMTP Zoho Mail Integration.
Suppressing Email Addresses
This guide will walk you through how to use the suppression list, including adding, managing, and reactivating suppressed addresses.
Zoho Mail Settings Reference
This reference guide lists all settings related to the Zoho Mail integration in Gravity SMTP and describes their purpose.
Creating An App In Your Zoho API Console
This article outlines the steps required to create a web app in your Zoho API Console.
Connecting To Zoho Mail
This article describes the process of integrating Gravity SMTP on your website using Zoho Mail.
Alerts
In this article, we will guide you through the process of setting up and managing Gravity SMTP Alerts.
Experimental Features
Gravity SMTP occasionally introduces experimental features, which are early versions of new functionality that are made available to users.
Brevo Settings Reference
This quick reference guide lists all settings related to the Brevo integration in Gravity SMTP and briefly describes their purpose.