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

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

Share of active installs on each version of this plugin · 100% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

Refined from the date this plugin crossed into its current band.

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price.

1. ★★★★★ designwise

   1mo ago

   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.

   Read on wp.org ↗
2. ★★★★★ gpaulley

   6mo ago

   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.

   Read on wp.org ↗
3. ★★★★★ chaney220

   7mo ago

   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!

   Read on wp.org ↗
4. ★★★★★ tcraftcoltd

   8mo ago

   ありがとうございます。

   Read on wp.org ↗
5. ★★★★★ TAPNET

   11mo ago

   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 🙂

   Read on wp.org ↗
6. ★★★★★ lakong

   12mo ago

   I have been using the plugin to connect my elementor/wordpress forms to Keap for a few years now and it works great. Recently I have been getting a connection error and had to continually reconnect the plugin with Keap to get it working again. After doing this 2-3 times I contacted their support and they quickly responded and helped resolve the issue by making a tweak on their end. Their support was great. Cannot recommend them more!

   Read on wp.org ↗
7. ★★★★★ questox

   12mo ago

   This plugin is excellent!

   Read on wp.org ↗
8. ★★★★★ adamstocklotstv

   1.2y ago

   Mailoptin is a decent tool. We bought the plugin and got very good support. Thanks to Collins and Ibrahim the plugin got many new features like currency support, additional product parameters. In the future the plugin will support more things and improvements will become standard. Thanks! This topic was modified 1 year ago by adamstocklotstv.

   Read on wp.org ↗

Recent releases and news for this plugin

1. — Version 1.2.78.0 Added Copper CRM integration . Fixed security issue where a non-whitelisted option could be used as a list-subscription field value. 1.2.78.0
2. — Version 1.2.77.3 Improved PHP 8.5 support. Fixed security issue where optin without the list-selection field behaved as one. 1.2.77.3
3. — Version 1.2.77.2 Fixed more Outlook email template rendering issues. 1.2.77.2
4. — Version 1.2.77.1 Added column support for posts in email template. Updated Klaviyo API to version 2026-04-15 Improved email template support for Outlook. Fixed subscription bug in Brevo on duplicate contact. 1.2.77.1
5. — Version 1.2.77.0 Added SendPulse email marketing integration. Added Bento email marketing integration. Increased API request timeout. Improved hiding of content in Outlook email. Added filter to remove footer section from email template 1.2.77.0
6. — Version 1.2.76.0 Added Mailercloud email marketing integration. Improved admin UI. Added Cloudflare Turnstile integration Added Background processing of external optin. Fixed fatal error with cloning optin. Fixed fatal error with optin t 1.2.76.0

7 disclosed vulnerabilities on record for this plugin, all fixed in the current version. Sites on older versions stay exposed until they update.

1. Medium · 6.4 MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc. <= 1.2.78.0 - Authenticated (Contributor+) Stored Cross-Site Scripting ↗
   2026-07-29 CVE-2026-66703 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 1.2.78.0 Patched in 1.2.78.1
2. Critical · 9.8 MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc. <= 1.2.77.3 - Unauthenticated Privilege Escalation ↗
   2026-07-09 CVE-2026-57813 Incorrect Privilege Assignment Affects <= 1.2.77.3 Patched in 1.2.78.0
3. Medium · 4.4 MailOptin <= 1.2.75.0 - Authenticated (Administrator+) Stored Cross-Site Scripting ↗
   2025-09-03 CVE-2025-58596 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 1.2.75.0 Patched in 1.2.75.1
4. Medium · 5.4 Popup, Optin Form & Email Newsletters for Mailchimp, HubSpot, AWeber – MailOptin <= 1.2.70.3 - Authenticated (Contributor+) Stored Cross-Site Scripting ↗
   2024-09-23 CVE-2024-8628 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 1.2.70.3 Patched in 1.2.70.4
5. Medium · 5.5 MailOptin <= 1.2.54.0 - Authenticated (Admin+) Cross Site Scripting ↗
   2023-01-20 CVE-2023-23980 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects 1.2.54.0 Patched in 1.2.54.1
6. Medium · 5.3 MailOptin <= 1.2.49.0 - Missing Authorization to Cache Deletion ↗
   2022-09-23 CVE-2022-36340 Missing Authorization Affects <= 1.2.49.0 Patched in 1.2.50.0
7. High · 7.3 Popup, Optin Form & Email Newsletters for Mailchimp, HubSpot, AWeber – MailOptin <= 1.2.35.1 - Authorization Bypass ↗
   2021-06-30 Missing Authorization Affects <= 1.2.35.1 Patched in 1.2.35.2

Automated install-time checks, tested on PHP 8.1.12 · WP 7.0

Translated into 7 languages, 0 at 90% or more

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

1. 2026-05-16 20K+ → 10K+ down after 861 days in tier
2. 2024-01-06 30K+ → 20K+ down

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

• CM Pop-Up – Create engaging popups to capture attention and boost interaction 8K+ installs · 3.6★ · 3 shared tags B
• FireBox – WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart Abandonment 7K+ installs · 4.8★ · 3 shared tags A
• WP Popup Builder – Popup Forms and Marketing Lead Generation 2K+ installs · 3.8★ · 3 shared tags B
• Email Subscription Popup — Newsletter & GDPR Consent 1K+ installs · 3.9★ · 3 shared tags B
• Easy GDPR Consent Forms – MailChimp 500+ installs · 3.6★ · 3 shared tags D
• MC4WP: Mailchimp for WordPress 1M+ installs · 4.8★ · 2 shared tags A

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Drop a live Pulse card for MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc. into a readme, a review or a deck. It updates itself.

MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc.: 10K+ active installs, 4.8★ (435 reviews). Plugin Pulse (WP Mayor), as of 2026-08-28. https://plugins.wpmayor.com/plugin/mailoptin