Description
Mailster connects WS Form submissions directly to the Mailster email marketing service, syncing new contacts to segmented lists and mapping custom fields such as name, email, and shipping address. By adding an opt-in checkbox to your form, the add-on captures visitor consent and automatically triggers the subscription to your Mailster list, so you never have to export and import leads by hand.
Key Features of Mailster
- Direct Mailster integration
Connects your WS Form forms to the Mailster service with nothing in between. - Field mapping
Maps fields like name, email, and address to their matching fields in Mailster. - Opt-in checkbox
Adds a consent field to your form to keep you compliant with regulations. - Automatic syncing
Triggers the Mailster list subscription the moment the form is submitted. - Segmented list support
Lets you choose which Mailster list each lead goes to.
Benefits of Mailster
- Marketing automation
Captured leads become subscribers on your list automatically. - Time savings
No more exporting data by hand and importing it into Mailster. - Consent compliance
Built-in opt-in confirms that the contact agreed to receive emails. - An up-to-date contact base
New subscribers land on your list in seconds, with no delays.
Who Is Mailster For?
- Anyone already using WS Form who wants leads sent to Mailster automatically, with no manual work.
- You, if you collect contacts through forms and want to nurture those leads with automated email marketing campaigns.
- Anyone who needs a practical link between WordPress forms and the Mailster service without any technical know-how.
How to Download Mailster
Mailster is available for download right here on Ultrapack. Once you have the .zip file, install it under Plugins > Add New > Upload Plugin, select the .zip, and activate it. The add-on will show up in the WS Form settings panel, where you can set up the integration with your Mailster account.
Mailster rounds out WS Form with a direct integration to the Mailster email marketing service, perfect for anyone looking to automate lead capture and delivery for email campaigns. With field mapping and built-in opt-in, the add-on makes sure every form submission turns into a subscriber on your list, ready to be nurtured with tailored campaigns. It’s the practical way to bring WordPress forms and email marketing together without ever leaving your dashboard.
Frequently asked questions
Is WS Form Mailster GPL-licensed?
Yes. WS Form Mailster 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 WS Form Mailster on multiple sites?
Yes. You can install WS Form Mailster 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 WS Form Mailster cost at Ultrapack?
WS Form Mailster 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 WS Form Mailster include updates?
Yes. The current version of WS Form Mailster is 1.0.3, published at Ultrapack on Jan 8, 2025. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).
Is WS Form Mailster scanned before publication?
Yes. Every version of WS Form Mailster goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.
What changed in this version
Version 1.0.3 02/26/2024
- Bug Fix: Populate using action if email not found
Version 1.0.2 01/26/2024
- Added: Remove Old List Assignments setting
Version 1.0.1 May 1, 2024
- Bug Fix: Default value in options
Version 1.0.0 12/29/2023
- Initial release.
Release notes published by the developer.
How to install
Automatic updates: this item is updated by the Ultrapack Auto Updater. With it installed, the new version shows up in your dashboard like any other WordPress update (how to set it up).
- Download the file
ws-form-mailster.zip. - In the WordPress dashboard, go to Plugins > Add New > Upload Plugin.
- Select the file
ws-form-mailster.zipand click Install Now. - Click Activate.
Stuck on a step? Open a ticket telling us which one you stopped at.

UAU Ready