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MailOptin — WordPress Newsletter Plugin

MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc.

by properfraction · WordPress.org page · Website

v1.2.78.3 Tested up to WP 7.1 PHP 7.4+ Paid version available

MailOptin has 10,000+ active installs on WordPress.org and 2,454,482 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on August 28, 2026, tested up to WordPress 7.1.

MailOptin at a glance

Active installs
10,000+
Total downloads
2,454,482
Downloads, last 30 days
available after 30 days of tracking
30-day growth
tracking since September 4, 2026

Is MailOptin 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, the current release is 7.1
One-star reviews
3%
15 of 436 reviews on WordPress.org

Features

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

  • Custom Fields: Add extra fields to your optin form to capture additional data from subscribers
  • Optin Campaign Schedule: Allows you to specify a start and end date when an optin campaign is scheduled for display
  • Advance Analytics: Get essential metrics to improve your lead-generation strategy and make data-driven decisions to increase your revenue
  • Custom CSS: An advance customization feature allows you to customize your optin campaigns with your CSS styles
  • Display Effect: 30+ built-in CSS3 animation effects to capture your visitor’s attention and bring awareness to your optin forms
  • Sound Effect: Play sounds when your optin campaigns are displayed to grab users’ attention. Learn more
  • MailOptin Leads: Store your leads within MailOptin and essential data about your subscribers that generally can’t be passed to your ESP, such as the referrer…
  • Shortcode & Template Tag Embed: Display optin forms anywhere on your website page and posts with shortcodes and anywhere on your theme with template tags
  • Autoresponder: Immediately send an email to leads or subscribers that sign up to your email list
  • Email Notification after Conversion: Receive immediate email notification whenever you get a new subscriber
  • Facebook Custom Audience Integration: save leads to Facebook custom audiences so you can retarget them later
  • User Registration Optin: Subscribe users to your email marketing list after they register or signup to WordPress. Learn more

MailOptin reviews and ratings

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

4.8 out of 5

436 reviews

5★
403
4★
8
3★
6
2★
4
1★
15
  • Made cool things happen!

    This simple but effective plugin helped me tie together my email systems and subscriber lists via wordpress in a way that allowed me to communicate with subscribers on a very occasional basis without having to maintain expensive mailer subscriptions like sendgrid or mailchimp. thanks. Great help.

    samuelkasey26
  • Great solution to an annoying problem

    I've been struggling with pop-ups, trying to get them to behave in a manner that is not oppressive to the website visitor. This one finally does that. It has the ability to show itself once and then remain silent for 30 days. Excellent.

    designwise
  • Outstanding.

    After trying IceGram and being tremendously disappointed, I decided to try MailOptIn. My stack includes WP Mail SMTP, MailOptIn, MailJet, and WP Forms. The implementation has been flawless and I love the ability to customize my forms and newsletters with such ease, and with zero issues. Well done MailOptIn.

    gpaulley
  • Outstanding Customer Service!

    One of the customer service reps contacted me and offered to create a free campaign for me! I just told him what I wanted, and he did all the work for me. And he did a great job!

    chaney220
  • すごいよ

    ありがとうございます。

    tcraftcoltd
  • Very Helpful Support

    Inquired about exporting optin campaigns as we're rebuilding our WordPress site. Although the feature is on the roadmap, we had to perform the export manually from WordPress tables. Received quick response on the steps and even faster when we got stuck and couldn't find one of the records in wp_options. Glad we didn't have to recreate 75+ optin campaign forms :)

    TAPNET

Where MailOptin ranks on WordPress.org

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

Ranking WordPress.org placement Position 30 days
Best Newsletter Plugins #22 by tag, #17 in search #12
Best Popup Plugins #19 by tag, #38 in search #22
Best LMS Plugins #45 in search, not tagged #76
Best Lead Generation Plugins #45 in search, not tagged #79

MailOptin alternatives

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

Details

Create popup, optin forms using easy form builder & popup maker. Send automated email to subscribers — Mailchimp, ActiveCampaign, Campaign Monitor etc

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

Rankings MailOptin competes in

Tags

  • mailchimp
  • newsletter
  • popup
  • popup maker
  • popups

More from properfraction

Version
1.2.78.3
Last updated
Aug 28, 2026
First published
Jul 17, 2017
Requires WordPress
6.4
Tested up to
7.1
Requires PHP
7.4
Pricing
Free, paid version available

MailOptin FAQ

What does MailOptin do?

According to its WordPress.org readme, MailOptin offers Custom Fields: Add extra fields to your optin form to capture additional data from subscribers, Optin Campaign Schedule: Allows you to specify a start and end date when an optin campaign is scheduled for display, Advance Analytics: Get essential metrics to improve your lead-generation strategy and make data-driven decisions to increase your revenue, Custom CSS: An advance customization feature allows you to customize your optin campaigns with your CSS styles and Display Effect: 30+ built-in CSS3 animation effects to capture your visitor’s attention and bring awareness to your optin forms.

How many active installs does MailOptin have?

WordPress.org reports 10,000+ active installs for MailOptin as of September 7, 2026.

Is MailOptin still maintained?

Yes. The last release was on August 28, 2026 and it is tested up to WordPress 7.1.

Does MailOptin have good support?

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

Is MailOptin free?

MailOptin is free to install from WordPress.org. The developer lists it as commercial, so a paid version or paid add-ons exist.

Where does MailOptin rank among Newsletter Plugins?

MailOptin is #12 in the WordPress.org Newsletter Plugins ranking.