Description

The SMTP addon routes all emails sent by your WordPress through dedicated providers such as SendGrid, Mailgun, Postmark, Brevo, Amazon SES, Google, and Microsoft 365, replacing PHP’s default wp_mail function. The native integration with Gravity Forms logs every notification sent, monitors open rates, and triggers alerts in case of failure, ensuring that form confirmations and transactional messages reach the primary inbox.

Key Features

  • Connection to multiple providers
    Sends messages through SendGrid, Mailgun, Postmark, Brevo, Amazon SES, Google, and Microsoft 365.
  • Detailed sending logs
    Records the sender, recipient, delivery status, and time of each message sent.
  • Open tracking dashboard
    Shows total volume, open rate, and top sources over a filterable period.
  • Real-time alerts with failover
    Reports sending failures and automatically activates a configured backup provider.
  • Control over WordPress notifications
    Also covers core emails such as registration, password reset, and account recovery.

SMTP Benefits

  • More messages reaching the primary inbox
    Dedicated providers reduce the risk of form notifications landing in spam.
  • Fast problem diagnosis
    Logs and alerts show where sending failed without relying on a hosting support ticket.
  • Continued delivery during outages
    Failover to a backup provider keeps notifications flowing if the primary service fails.
  • Consolidated view of transactional email
    Volume and open metrics reveal the recipients’ actual behavior.

Who Is It For?

  • Sites that capture leads through Gravity Forms and experience messages being lost in spam.
  • Online stores and membership platforms with a high volume of transactional email.
  • Agencies that maintain multiple WordPress sites and want to standardize email delivery.

SMTP serves online stores, corporate websites, and marketing operations that depend on the reliable delivery of automated notifications. The combination of routing through a dedicated provider, auditable logs, and open metrics places email delivery under the same level of control that WordPress already provides for the rest of the content, transforming an often invisible part of the operation into something measurable.

Frequently asked questions

Is Gravity Forms SMTP GPL-licensed?

Yes. Gravity Forms SMTP is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.

Can I use Gravity Forms SMTP on multiple sites?

Yes. You can install Gravity Forms SMTP on as many sites as you want. Only automatic updates through Ultrapack Auto Updater have a limit: from 3 to 80 sites, depending on the plan.

How much does Gravity Forms SMTP cost at Ultrapack?

Gravity Forms SMTP costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).

Does Gravity Forms SMTP include updates?

Yes. The current version of Gravity Forms SMTP is 2.3.4, published at Ultrapack on Sep 23, 2026. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).

Is Gravity Forms SMTP scanned before publication?

Yes. Every version of Gravity Forms SMTP goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.