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Gravity SMTP v2.3.3 - WordPress Plugin

Developer: Gravity FormsCategory: WordPress PluginsTrusted with 44 downloadsPro1 favoriteLatest v2.3.3Updated 2w ago

With Gravity SMTP, you’ll be able to reliably send emails from your WordPress website.

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With Gravity SMTP, you’ll be able to reliably send emails from your WordPress website. Don’t rely on the default PHP Mail function used by WordPress, instead integrate your site with secure and trusted SMTP providers and API-based services, helping you to confidently send and track emails from your website.

Recent releases

Release history

View all 9 versions
v2.3.3LatestVerified Safe
Aug 27, 20265.1 MB
Other
  • Security enhancements.
Added
  • the ability to define a single license key constant to use between GF core and SMTP.
  • the ability to define a Tenant when sending with Amazon SES.
  • the routing capabilities to the Members plugin integration
Fixed
  • a fatal error in strip_sensitive_log_data() when headers is a string
  • a PHP warning when a Zoho Mail OAuth token exchange returns an error response.
  • a typo in the fatal error message shown when sending fails.
  • an issue that caused the Zoho Mail integration to fail to connect and send email for accounts on non-US datacenters.
  • an issue that exposed license keys to users without permission to view them.
  • an issue that prevented the Gravity Forms license key from being used on the Gravity SMTP Settings page when the setup wizard was skipped.
  • an issue where a long email subject with multi-byte characters could prevent the message from being logged.
  • an issue where fast typing in the Email Log, Suppressions, and Debug Log search fields could remove entered characters.
  • an issue where removing and re-adding an integration retained its previous settings.
  • an issue where the Google OAuth callback could replay on page refresh, retain a stale connection error, and skip validation of the state parameter.
  • an issue where the integration URL parameter stayed in the address bar after the integration flyout closed, which reopened the flyout on refresh.
  • an issue where the Microsoft OAuth callback could replay on page refresh, retain a stale connection error, and skip validation of the state parameter.
  • an issue where the Zoho Mail OAuth callback could replay on page refresh, retain a stale connection error, and skip validation of the state parameter.
  • an issue where the Zoho Mail sign-in button used the authorization URL for the previously saved datacenter after the Datacenter Region setting changed.
  • an issue where Zoho Mail omitted CC, BCC, and additional To recipients.
  • an issue that can cause expired Zoho tokens not to refresh when the current token fails.
  • integration descriptions being truncated when adding a connection.
  • Microsoft connected account details and improved mailbox error guidance.
  • removed integrations still appearing as Send With options on the Send a Test tool
  • routing preview access to respect smart routing availability and permissions.
  • an issue that can cause MySQL errors when installing the plugin for the first time.
  • an issue that can cause string-formatted attachment headers to throw a fatal on send.
Improved
  • the Google / Gmail integration to activate only after the OAuth connection completes, so a failed or abandoned connection attempt no longer shows as an active integration or becomes the primary connector.
  • the Google / Gmail settings to require fresh credential entry when no connection exists, which prevents an obfuscated client ID from reaching the Google authorization URL.
  • the Microsoft 365 / Outlook integration to activate only after the OAuth connection completes, so a failed or abandoned connection attempt no longer shows as an active integration or becomes the primary connector.
  • the Microsoft 365 / Outlook settings to require fresh credential entry when no connection exists, so a reconnect after a failed or abandoned attempt starts clean.
  • the Zoho Mail integration to activate only after the OAuth connection completes, so a failed or abandoned connection attempt no longer shows as an active integration or becomes the primary connector.
  • the Zoho Mail settings to require fresh credential entry when no connection exists, which prevents an obfuscated client ID from reaching the Zoho authorization URL.
Aug 3, 20261.8 MB
View changelog
Fixed
  • an issue where multiple integrations could be flagged as the primary or backup connection at the same time, causing email to send through an integration other than the one shown as primary.
Jul 8, 20261.8 MB
View changelog
Added
  • a Filtered status for emails that had suppressed addresses removed from the to, cc, or bcc fields.
  • a Message Stream setting to the Postmark connector.
  • an Email Routing settings screen for sending emails through different connectors based on conditions.
  • support for custom file names in attachments for Custom SMTP, PHP Mail, Amazon SES, Google, Microsoft, and Zoho connectors.
Fixed
  • an issue that can cause PHP warnings if a service fails to send an email.
  • an issue that can cause the settings pages to fail to load when notification settings are missing.
  • an issue that causes important headers to be ignored in the Event Log.
  • an issue where email suppression only checked the first recipient.
  • an issue where the connector settings modal could fail to open after an error occurs while changing the primary or backup connector on the Integrations screen.
  • an issue where the email activity digest would send even when the setting was disabled.
Improved
  • the `gravitysmtp_connector_for_sending` filter to pass the email source as a third parameter.

Frequently asked questions

Is Gravity SMTP GPL licensed?
Yes, Gravity SMTP is distributed under the GNU General Public License (GPL). You can legally use, modify, and redistribute it on unlimited websites.
What is the latest version of Gravity SMTP?
The latest version of Gravity SMTP on GPLCoffee is v2.3.3 (released Aug 27, 2026, 5.1 MB download size). Every new release is synced automatically, and subscribers can update directly from their WordPress dashboard with the one-click connector plugin.
How much does Gravity SMTP cost on GPLCoffee?
Gravity SMTP is available for $5.99 for a 1-year license or $15.99 for a lifetime license. Membership plans also include credit-based access so you can download Gravity SMTP along with thousands of other plugins, themes, and PHP scripts for a single subscription.
Is Gravity SMTP safe to download?
Yes. The latest release of Gravity SMTP (v2.3.3) was scanned with VirusTotal and came back clean. Scan results are visible on each version page, and releases flagged as malicious are blocked from the catalog.

Auto-updates included

Install it once, update automatically.

The GPLC Connector installs this plugin from your wp-admin and rolls out new versions to your connected sites - up to 25. Included with 12-month and Geek Lifetime plans (plus legacy 6-month).