Send beautiful newsletters from WordPress. Collect subscribers with signup forms, automate your emails for WooCommerce, blog post notifications & …
As of April 2026, Mailster WordPress Newsletter Plugin is a WordPress newsletters plugin with 9.0K+ active installations and a 3.5/5 rating from 8 reviews. It has been downloaded 41K+ times in total. Requires WordPress 6.0+ and PHP 7.4+. Available on WordPress.org since 2017. Last updated 1 year ago — may have compatibility concerns. Downloads are down 16% this week. Support resolution rate: 100%. Top alternative: MailMunch – Grow your Email List.
Mailster lets you send all your posts, products, events or other custom post types. Every type can also be used for email automation.
Set up your welcome series and leave the rest to Mailster.
You sit back and focus on your business while Mailster makes sure your new subscribers feel welcome.
Mailster offers you a choice of more than 400 free and premium designs.
Create stunning and engaging campaigns in minutes!
When it comes to GDPR compliance, Mailster is your newsletter marketing tool of choice: Mailster fully complies with…
Is this plugin supported or developed .
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.
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.
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.
the plugin works very well. Thank you
| WordPress | 6.0+ requiredTested up to 6.5.8 |
| PHP | 7.4+ required |
Completely rewritten from scratch
For further details please visit the changelog on the Mailster Homepage
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.