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Mailster - Email Newsletter Plugin

by EverPressv4.1.21Unlimited sites

Mailster is a WordPress plugin from EverPress for creating, sending and managing email newsletters.

Product facts

Version
4.1.21
Released
20 October 2026
Type
Plugin
Licence
GPL
Included in
Every plan, or $4.89 on its own

Overview

Running email campaigns often means juggling a separate service, a list of contacts and a pile of reports. Mailster brings that work into WordPress. You build newsletters with a drag-and-drop editor, start from customizable templates that match your brand, and manage subscribers from one dashboard. Segmentation lets you target specific groups based on behavior and preferences, and the layouts are responsive, so messages read well on desktops and phones.

Mailster connects with WooCommerce, Contact Form 7 and Gravity Forms, so subscribers from those plugins can be managed automatically. Autoresponders and automated campaigns handle follow-up messages, while real-time reports track opens, clicks, bounces and unsubscribes. Built-in SMTP support and compatibility with major email service providers cover delivery. It suits small businesses, bloggers and online stores that want to run their email marketing from their own site.

Features

  • Drag-and-drop email builder: Create newsletters visually without writing code. Arrange content blocks in the editor and shape each message to fit your campaign.
  • Customizable templates: Start from templates that can be tailored to match your brand identity and the goals of each campaign.
  • Real-time analytics: Track opens, clicks, bounces and unsubscribe rates as campaigns run, so you can see how each newsletter performs.
  • Plugin integrations: Works with WooCommerce, Contact Form 7 and Gravity Forms, which allows subscribers from those plugins to be managed automatically.
  • Automation and autoresponders: Set up automated campaigns and autoresponders to nurture leads and keep subscribers engaged without sending each message by hand.
  • Subscriber segmentation: Manage subscribers in a dashboard with segmentation options that let you target audiences based on behavior and preferences.
  • Privacy and consent tools: GDPR-oriented tools and consent management help keep your email marketing aligned with privacy regulations.
  • Multilingual campaigns: Create campaigns in multiple languages to reach subscribers in different regions.

Best for

  • Bloggers growing a subscriber list
  • Small businesses running email campaigns
  • WooCommerce stores sending customer newsletters

Changelog

Version 4.1.21 — 19 October 2026

  • Fixed Retina loading spinner 404 when legacy form styles are printed inline
  • Fixed All status filter count on subscribers screen showing 0
  • Fixed Tags with numeric names (e.g. "2026") can be created and assigned
  • Fixed Mailster_list_removed and mailster_tag_removed no longer run when the subscriber was not on that list or tag
  • Fixed List-based unsubscribe still succeeds when the subscriber is not on every campaign list
  • Fixed Image placeholder endpoint no longer allows unbounded image sizes
  • Fixed Numeric custom date fields now keep date operators, formatted values, and export date formats
  • Improved Subscriber list tags and lists link to a filtered view of matching subscribers
  • New Bulk actions to add or remove tags on the subscribers list
  • Improved Tag assign APIs treat integers as tag IDs and strings as tag names — custom code must cast IDs with (int) (numeric strings like "42" are names, not IDs)

Earlier versions

  • 4.1.20 (5 October 2026): 7 fixed
  • 4.1.18 (14 July 2026): 2 improved, 2 fixed
  • 4.1.17 (9 March 2026): 1 new, 12 improved, 3 fixed, 2 removed

FAQ

Is Mailster - Email Newsletter Plugin free?

The code of Mailster - Email Newsletter Plugin is licensed under the GPL, so anyone may use, change and share it. Buy GPL is a paid service: a plan or a purchase of Mailster - Email Newsletter Plugin gives you the download and its updates. The developer's own support, licence key and online services are not included.

Which version of Mailster - Email Newsletter Plugin is this?

Version 4.1.21, released 20 October 2026. New versions appear here when the developer publishes them.

How do I update Mailster - Email Newsletter Plugin?

Install Buy GPL Updater on your site and paste your key from My Account. It installs new versions of Mailster - Email Newsletter Plugin for you.