by EverPress 3.5 (8 reviews)

Mailster WordPress Newsletter Plugin

Name: Mailster WordPress Newsletter Plugin
Rating: 3.5 (8 reviews)
Author: EverPress

Free WordPress compatibility tester for Mailster. Check your site before buying the premium email newsletter plugin.

Mailster WordPress Newsletter Plugin ranks #2,619 among WordPress.org plugins with 7,000+ active installations, is #153 of 3,634 in the Communication category, a 3.5/5 rating from 8 reviews, and was last updated Oct 15, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1.4

v2.0.3 Current Version v2.0.3

Updated 3 weeks ago Last Update on 15 Oct, 2026

Refreshed 6 days ago Last Refreshed on

#153 of 3,634 in Communication Top 5% by installs Downloads -7.4% this week Actively maintained

View on WordPress.org

Rank

#2,619

— No change

Active Installs

7K+

-8.8%

KW Avg Position

29.2

0.2 better

Downloads

45.6K

+24 today

Support Resolved

100%

— No change

Rating

70%

Review 3.5 out of 5

3.5 (8 reviews)

Next Milestone 8K

Total Progress 51.7%

7K+ 8K+

193

Ranks to Climb

Growth Needed

8,000,000

Active Installs

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Need 483 more installs to reach 8K+

Rank Changes

Current #2,619

Change

Best #

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

3.5

8 reviews

Overall 70%

5 (63%)

0 (0%)

3 (38%)

Support Threads Overview

Resolved

Unresolved

Total Threads

Resolved

Unresolved

100%

Resolution Rate

Security History

Source: WPVulnerability

8 known vulnerabilities on record · 2 in the last 24 months · checked 1 month ago

Jul 22, 2026

Mailster WordPress Newsletter Plugin [mailster] < 4.1.18

CVE-2026-27064 · Fixed in v4.1.18
Oct 27, 2025

Mailster WordPress Newsletter Plugin [mailster] < 4.1.14

CVE-2025-64203 · Fixed in v4.1.14
Jun 28, 2024

Mailster WordPress Newsletter Plugin [mailster] < 4.0.10

CVE-2024-37433 · Fixed in v4.0.10
Apr 15, 2024

Mailster WordPress Newsletter Plugin [mailster] < 4.0.7

CVE-2024-32523 · Fixed in v4.0.7
Mar 28, 2024

Mailster WordPress Newsletter Plugin [mailster] < 2.0.0

CVE-2024-30503 · Fixed in v2.0.0
Oct 14, 2020

Mailster WordPress Newsletter Plugin [mailster] < 2.4.9

Fixed in v2.4.9
Oct 14, 2020

Mailster WordPress Newsletter Plugin [mailster] < 2.4.9

Fixed in v2.4.9
Mailster WordPress Newsletter Plugin [mailster] < 2.4.9

Fixed in v2.4.9

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Plugin Details

Version: 2.0.3
Last Updated: Oct 15, 2026
Requires WP: 6.0+
Tested Up To: 7.1.4
PHP Version: 7.4 or higher
Author: EverPress

Support & Rating

Rating: ★ ★ ★ ★ ☆ 3.5
Reviews: 8
Support Threads: 1
Resolved: 100%

Keywords

Email Marketing email newsletter email signup newsletter signup newsletters

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TL;DR

AI summary of the plugin's readme

Mailster is for WordPress site owners who want to send email newsletters and manage subscribers directly from their site. It solves the problem of running email marketing campaigns, automation, and subscriber tracking without relying on third-party services to store or share subscriber data.

Signup forms for subscribers
WooCommerce email automation
Blog post notifications
RSS to email campaigns
Time zone based sending
Merge tags for personalization
Advanced segmentation
Email campaign precheck

Frequently Asked Questions

Common questions about Mailster WordPress Newsletter Plugin

No. This free WordPress.org plugin is a compatibility tester only. Mailster is premium-only and is sold at mailster.co.

It checks PHP and WordPress versions, DOMDocument and fsockopen support, memory limits, wp_mail() delivery, and reachability of common email-related TCP ports.

No. The tester is free. You need a Mailster license only for the full email newsletter plugin.

No. WordPress.org guidelines do not allow converting this free tester into the premium plugin via an in-place update. When you upload the full Mailster ZIP from your purchase, the installer replaces the tester files in place and deactivates this plugin so Mailster can take over.

Use the Mailster knowledge base and Mailster support. WordPress.org support for this listing applies to the free tester plugin.