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Mailster — WordPress Newsletter Plugin

Mailster WordPress Newsletter Plugin

by EverPress · WordPress.org page · Website

v2.0.3 Tested up to WP 7.1.3 PHP 7.4+

Mailster has 7,000+ active installs on WordPress.org and 45,261 downloads all time. It was downloaded 1,122 times in the last 30 days. The last update was on October 15, 2026, tested up to WordPress 7.1.3.

Mailster at a glance

Active installs
7,000+
Total downloads
45,261
Downloads, last 30 days
1,122
30-day growth
–
downloads vs the previous 30 days

Is Mailster well maintained?

Support threads resolved
1 of 1
recent threads on the WordPress.org support forum
WordPress compatibility
Current
tested up to WordPress 7.1.3, the current release is 7.1.3

Features

The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.

  • Capture subscribers on your website or blog
  • Send your latest posts/products/custom post types
  • Welcome Emails
  • Birthday Campaigns
  • Follow up/Drip Campaigns
  • 400 free and premium templates
  • RSS email campaigns
  • Built in email campaign precheck
  • Integration with your favorite plugins
  • Import your existing data with ease
  • Available in over 15 languages
  • GDPR Compliance

Mailster reviews and ratings

8 reviews on WordPress.org, with the most recent ones as their authors posted them.

3.5 out of 5

8 reviews

5★
5
4★
0
3★
0
2★
0
1★
3
  • Is this plugin supported or developed

    Is this plugin supported or developed .

    ksaltik
  • Awful performance and support

    I don't often take the time to write a review but the "support" for this plugin is absolutely abysmal. The last FOUR WEEKS of trying to switch from legacy Mailster to new forms has been excruciating. It's been a complete waste of my time as a developer and a complete waste of my client's budget, having me liase all this time only to have to give up because 'support' won't help. Firstly the 'legacy' forms were hacked and they were being used to send spam, so the hosting company took the website offline until the issue was sorted. I completely removed the legacy form, got the website back online, and then tried to switch to their new forms..... and then the fun really started! Their documentation is awful. It's not even basic. So I kept having to reach out to ask one excruciating question after the next, one question a day, one answer a day. The days and weeks dragged by and we still can't create a 'Mailster Homepage' which is the new feature that replaced the 'legacy' feature. This newsletter was used on a large health organisation website which is funded by the EU. Of course we're not going to grant 3rd party access to a live website so that can start testing. ONE MONTH LATER and the issues are still not resolved, because 'support' have said that they won't help. The reason? We don't have a license for the staging/development site which they can use to troubleshoot the issue. We have now moved to a popular 3rd party solution because this last issue was really just the last straw. When the plugin was still working it would take an entire TWO DAYS just to send ONE newsletter to a small list of 2400 subscribers, even after using their 'intelligent email throttling" or whatever fancy name they give for a tool that makes no difference at all. We're not on cheap hosting either. We have dedicated CPU and processors. Don't waste your time with this plugin.

    ninjaneen
  • Before you buy Mailster for WordPress

    I've been using the plugin for 2 years, it works averagely. Since then they've only introduced up to 3 automations, which rarely work. It still doesn't load blocks and constantly displays error messages. The worst-optimized newsletter plugin. Considering autoresponders, I've tried many times to figure out why some work (despite the same settings) while others don't send. I also don't understand why some subscribers receive Auto-responder messages while others don't, despite being added to the same lists. The time since they registered doesn't differ from the time those who receive these messages. The plugin requires a lot of patience from developers, not to mention non-technical users.

    Patryk
  • Total nightmare

    What a nightmare of a plugin. There are virtually no instructions on how to set it up, it's unreliable and has lots of bugs. We had an issue with it trying to send hundreds of emails without knowing why it was doing it and there's no way of knowing how to solve the issues.

    emma336
  • Thank you

    the plugin works very well. Thank you

    Musabah-hati
  • Okay

    Plugin works as intended. Great.

    Tobias

Download and install history

1,510 downloads over the last 48 days. Snapshots taken daily from WordPress.org.

Downloads per day
Mailster downloads per day062.5125187.5250Sep 5Sep 28Oct 22Downloads per day
Active installs
Mailster active installs02.5k5k7.5k10kSep 5Sep 28Oct 22Active installs
Rating out of 5
Mailster rating01.32.53.85Sep 5Sep 28Oct 22Rating out of 5
Reviews
Mailster review count02.557.510Sep 5Sep 28Oct 22Reviews

Where Mailster ranks on WordPress.org

The rankings we track that Mailster appears in, and how its position changed over 30 days.

Ranking WordPress.org placement Position 30 days
Best Newsletter Plugins #34 by tag, #16 in search #14 ▲48

Mailster alternatives

Plugins that solve the same problem, ranked by how closely they overlap with Mailster.

Details

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

The full description, screenshots and every review live on the WordPress.org page.

Rankings Mailster competes in

Tags

  • Email Marketing
  • email newsletter
  • email signup
  • newsletter signup
  • newsletters

More from EverPress

Version
2.0.3
Last updated
Oct 15, 2026
First published
Jan 13, 2017
Requires WordPress
6.0
Tested up to
7.1.3
Requires PHP
7.4
Pricing
Free on WordPress.org

Mailster FAQ

What does Mailster do?

According to its WordPress.org readme, Mailster offers Capture subscribers on your website or blog, Send your latest posts/products/custom post types, Welcome Emails, Birthday Campaigns and Follow up/Drip Campaigns.

How many active installs does Mailster have?

WordPress.org reports 7,000+ active installs for Mailster as of October 22, 2026.

Is Mailster still maintained?

Yes. The last release was on October 15, 2026 and it is tested up to WordPress 7.1.3.

Does Mailster have good support?

On the WordPress.org forum, 1 of 1 recent support threads for Mailster are marked resolved. That is the developer's free support; a paid version usually comes with its own channel.

Is Mailster free?

Mailster is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.

Where does Mailster rank among Newsletter Plugins?

Mailster is #14 in the WordPress.org Newsletter Plugins ranking.