Mailster Contact Form 7

62 Quality Score

Active Installs

14/30

Only around 1,000 active installs keeps popularity modest, which is expected for a niche addon that depends on two other plugins being installed first.

Update Freshness

18/25

A recent update within the past week and tested compatibility with WordPress 6.8.5 indicate the developer is actively maintaining the codebase.

User Rating

12/15

A perfect 100 out of 100 from 4 ratings is encouraging on the surface, but the very small sample size means the score carries limited statistical weight.

Support Health

8/15

Zero support threads opened and zero resolved gives a neutral signal, suggesting either the plugin rarely breaks or that its tiny user base has not needed help yet.

WP Compatibility

11/15

Compatibility with WordPress 6.8.5 and a minimum requirement of 6.0 is solid, though the lack of a declared PHP version requirement is a minor transparency gap.

Scores higher than 11% of indexed plugins

About

Create your Signup Forms with Contact Form 7 and allow users to signup to your newsletter.

Active Installs 1k+

Rating ★★★★★ 5/5

Last Updated 2025-11-03 10:23am GMT

Requires WordPress 6.0+

Tested Up To 6.8.8

✓ No known vulnerabilities

What It Does

Mailster Contact Form 7 acts as a bridge between Contact Form 7 and the Mailster newsletter plugin, letting you turn any CF7 form into a newsletter signup that pushes subscribers directly into a Mailster mailing list. Once installed, you map CF7 form fields to Mailster list fields, and submissions automatically create new subscribers with the data you specified. It does not include form building, list management, or email sending features itself, since those come from CF7 and Mailster respectively.

Who It's For

This plugin is built for site owners who already use Mailster as their email marketing platform and Contact Form 7 for form creation, and want a lightweight way to connect the two without writing custom integration code. It works well for small businesses, bloggers, nonprofits, and membership sites running a single newsletter on a self-hosted Mailster setup. If your existing stack is already CF7 plus Mailster, this addon removes the friction of exporting CSVs or duplicating signups manually.

Who Should Skip It

Anyone not already using Mailster should skip this plugin entirely, since it does nothing useful without both Mailster and Contact Form 7 installed and active. Users running Mailchimp, MailPoet, or other ESPs will get zero value from this connector and should look at a native integration for their platform instead.

The Bottom Line

Mailster Contact Form 7 is a tidy, recently updated bridge plugin that does one specific job and appears to do it well, earning an overall quality score of 65.84 out of 100. Its narrow utility, tiny install base, and lack of a public support track record mean it is a safe choice only for users already committed to the Mailster and Contact Form 7 stack. If you fall outside that niche, a broader alternative like MailPoet or MC4WP will serve you better.

Pick Hostinger Reach if you want an all-in-one email marketing solution with built-in signup forms and AI assistance rather than gluing two plugins together.

MC4WP: Mailchimp for WordPress 89/100

Pick MC4WP if your newsletter runs on Mailchimp and you need the same CF7-to-list bridging pattern this plugin offers.

MailPoet – Newsletters, Email Marketing, and Automation 89/100

Pick MailPoet if you want a single plugin that handles forms, list management, and sending without needing a separate ESP or bridge addon.

Database Addon for Contact Form 7 – CFDB7 88/100

Pick CFDB7 if your real goal is capturing and exporting CF7 submissions to your own database rather than syncing them to an email list.

ReCaptcha v2 for Contact Form 7 86/100

Pick the ReCaptcha addon if you need to protect your CF7 signup forms from spam bots before worrying about where submissions go.