WPIntell

Market

mail

Mail matters only if the evidence supports a paid workflow around protecting form submissions and lead routing, not a list of isolated fixes. The current commercial thesis is: Businesses lose leads when forms, spam controls, email delivery, or CRM handoffs fail. The entry wedge is to verify lead capture end to end and show where submissions, notifications, or integrations break.

Proof Health

Open evidence

Commercial opportunities need traceable source links before they are treated as build-worthy.

89 / 125 rows with source links

71.2% of this page's analysis has direct source links.

0 build-decision rows missing links

0 rows here require auditable proof before promotion.

36 rows with no attached evidence

0 rows have source counts but still need direct links.

Opportunity Summary

Full report

Build a lead capture reliability plugin for marketing teams, agencies, and lead-generation site owners: Businesses lose leads when forms, spam controls, email delivery, or CRM handoffs fail. The first wedge is to verify lead capture end to end and show where submissions, notifications, or integrations break.

The unmet need is not the individual complaint. It is the recurring business workflow: Businesses lose leads when forms, spam controls, email delivery, or CRM handoffs fail. Current stage: commercial plugin opportunity.

Competitors

20 shown
Flamingo 800.0K installs · 4.2
weak incumbent
-96.3%momentum 59.3weakness 28/20pain/praise

Pain still appears around security, bugs despite praise for quality, easy.

source 1 source 2
WP-EMail 1.0K installs · 4.5
praise owner
-97.6%momentum 68.9weakness 18/11pain/praise

Pain still appears around bugs, support despite praise for quality, reliable.

source 1 source 2
Mailgun for WordPress 80.0K installs · 3.8
weak incumbent
-96.7%momentum 56.5weakness 18/22pain/praise

Pain still appears around support, bugs despite praise for reliable, quality.

source 1 source 2
reCAPTCHA for MW WP Form 30.0K installs · 3.7
weak incumbent
-97.5%momentum 66.8weakness 11/3pain/praise

Pain still appears around security, bugs despite praise for easy, support.

source 1 source 2
Gmail SMTP 10.0K installs · 4.1
praise owner
-92.1%momentum 54.9weakness 10/25pain/praise

Pain still appears around bugs, compatibility despite praise for quality, reliable.

source 1 source 2
Mail Subscribe List 3.0K installs · 4.4
praise owner
-97.7%momentum 67.1weakness 24/23pain/praise

Pain still appears around missing feature, compatibility despite praise for easy, quality.

source 1 source 2
WP Mail From II 5.0K installs · 5.0
praise owner
-98.5%momentum 66.0weakness 9/26pain/praise

Pain still appears around bugs, compatibility despite praise for reliable, quality.

source 1 source 2
Change Mail Sender 20.0K installs · 4.4
weak incumbent
-96.8%momentum 60.3weakness 6/15pain/praise

Pain still appears around compatibility, missing feature despite praise for quality, easy.

source 1 source 2
Zoho Mail for WordPress 20.0K installs · 3.8
praise owner
-96.8%momentum 53.0weakness 28/19pain/praise

Pain still appears around bugs, support despite praise for reliable, quality.

source 1 source 2
MW WP Form 200.0K installs · 4.2
praise owner
-96.8%momentum 46.3weakness 6/18pain/praise

Pain still appears around bugs, compatibility despite praise for form, quality.

source 1 source 2
WP Mail Log 10.0K installs · 4.9
praise owner
-95.6%momentum 48.6weakness 12/30pain/praise

Pain still appears around bugs, support despite praise for quality, easy.

source 1 source 2
Email 70 installs · 3.3
praise owner
-97.2%momentum 62.4weakness 27/2pain/praise

Pain still appears around support, compatibility despite praise for quality, easy.

source 1 source 2
SMTP 700 installs · 2.5
praise owner
-98.1%momentum 58.7weakness 6/3pain/praise

Pain still appears around bugs, missing feature despite praise for support, value.

source 1 source 2
WP SMTP Config 200 installs · 3.0
praise owner
-95.6%momentum 59.3weakness 7/2pain/praise

Pain still appears around bugs, compatibility despite praise for reliable, value.

source 1 source 2
CryptX 10.0K installs · 4.4
praise owner
-95.3%momentum 49.9weakness 13/16pain/praise

Pain still appears around bugs, compatibility despite praise for reliable, quality.

source 1 source 2
Simple SMTP 2.0K installs · 5.0
praise owner
-97.4%momentum 49.6weakness 9/11pain/praise

Pain still appears around security, bugs despite praise for easy, quality.

source 1 source 2

Evidence

Open evidence explorer
complaint Guzzle 7 dependency conflict with another WordPress plugin

Guzzle 7 dependency conflict with another WordPress plugin: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Gmail SMTP · Guzzle 7 dependency conflict with another WordPress plugin Hello, I’m experiencing a fatal error in the Gmail SMTP plugin during the Google OAuth authentication process when the Metricool WordPress plugin is active. complaint WooCommerce Product Vendors Support

WooCommerce Product Vendors Support: users show security, bugs, compatibility pain that may indicate a product gap.

Kadence WooCommerce Email Designer · WooCommerce Product Vendors Support Hello. complaint No Notifications

No Notifications: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Notification : BuddyPress · Thanks a ton Here’s the error code that WP sent us. mixed Great plugin, but no Reply-To support

Great plugin, but no Reply-To support: users show security, bugs, compatibility pain that may indicate a product gap.

Zoho Mail for WordPress · Great plugin, but no Reply-To support The plugin works great with the Zoho Mail account. complaint Plugin stopped sending after recent update

Plugin stopped sending after recent update: users show bugs, compatibility, missing feature pain that may indicate a product gap.

WP-EMail · Plugin stopped sending after recent update Hello, We have been using this plugin for a long time. complaint PHP Error

PHP Error: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Zoho ZeptoMail · PHP Error Hi, I am getting this error several times a day. complaint From: Email not showing

From: Email not showing: users show security, compatibility, missing feature pain that may indicate a product gap.

SMTP · From: Email not showing Hi, First I would like to thank you for the great plugin! complaint Is there a free version?

Is there a free version?: users show security, missing feature, pricing pain that may indicate a product gap.

Zoho ZeptoMail · Is there a free version? complaint Cant translate the “Privacy Policy” string

Cant translate the “Privacy Policy” string: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Add-on WooCommerce – MailPoet 3 · Cant translate the “Privacy Policy” string Hi, I have trouble with translating the “Privacy Policy” string that appears on the checkout page when I use the option “Display GDPR Subscription consent Text”. complaint Activating the plugin blocks the payment section on the checkout page

Activating the plugin blocks the payment section on the checkout page: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Add-on WooCommerce – MailPoet 3 · Activating the plugin blocks the payment section on the checkout page I’m running WP 5.1.1 with WooCommerce 3.6.2 and Mailpoet 3 3.24.0 and version 1.1.5 of your plugin. complaint Multilists appears but it doesn’t work

Multilists appears but it doesn’t work: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Add-on WooCommerce – MailPoet 3 · Multilists appears but it doesn’t work Hello, i was looking for a solution to have mulitilist subscription at checkout. complaint Variable Values are Displayed (Greyed Out) in WP Admin Settings Page

Variable Values are Displayed (Greyed Out) in WP Admin Settings Page: users show security, compatibility, performance pain that may indicate a product gap.

Simple SMTP · Variable Values are Displayed (Greyed Out) in WP Admin Settings Page Hi, When using environment variables or setting the SMTP_* credentials in wp-config.php the values are displayed, albeit greyed out, in the WordPress Simple SMTP settings page of WP Admin. complaint PHP Fatal error

PHP Fatal error: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Simple SMTP by Maileroo · PHP Fatal error Hello I wanted to attach files to woocommerce order email. complaint Notification e-mails not being sent

Notification e-mails not being sent: users show security, bugs, compatibility pain that may indicate a product gap.

Admin User Messages · All the best, Rick Scavetta https://wordpress.org/plugins/admin-user-messages/ Hi, Thank you so much for this wonderful plugin. complaint PHP 8.2 crash zohoMail.php:463

PHP 8.2 crash zohoMail.php:463: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Zoho Mail for WordPress · PHP 8.2 crash zohoMail.php:463 2025-01-13T18:53:19+00:00 Critical Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /sites/XYZ/files/wp-content/plugins/zoho-mail/zohoMail.php:463 Additional context { "error": { "type": 1, "file": "/sites/XYZ/files/wp-content/plugins/zoho-mail/zohoMail.php", "line": 463 }, "remot complaint Can't get it to work

Can't get it to work: users show security, bugs, missing feature pain that may indicate a product gap.

SMTP by BestWebSoft · Can't get it to work Too difficult to configure for a non-coder. complaint I am having error warning

I am having error warning: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Zoho ZeptoMail · I am having error warning I am using zoho zepto mail for my website https://trulynk.org/ . complaint I approve

I approve: users show security, bugs, compatibility pain that may indicate a product gap.

CryptX · I approve UPDATE 7th JUNE 2015: I’ve had an increase in spam emails, so am looking for another plugin. complaint Subscription Checkbox doesn’t appear

Subscription Checkbox doesn’t appear: users show bugs, compatibility, pricing pain that may indicate a product gap.

Add-on WooCommerce – MailPoet 3 · Subscription Checkbox doesn’t appear Hi. complaint “Unsubscribed” status when adding to the Subscribers after checkout

“Unsubscribed” status when adding to the Subscribers after checkout: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Add-on WooCommerce – MailPoet 3 · “Unsubscribed” status when adding to the Subscribers after checkout Hi! complaint PHP Fatal error pls fix

PHP Fatal error pls fix: users show bugs, compatibility, performance pain that may indicate a product gap.

Notification – Custom Notifications and Alerts for WordPress · PHP Fatal error pls fix 2025/04/22 01:35:16 [error] 32285#32285: *108959 FastCGI sent in stderr: “PHP message: PHP Fatal error: Uncaught Exception: The notification/from/array filter didn’t return a Notification object. complaint Elementor Form Submission Fails After Updating Mail Queue Plugin (Conflict with

Elementor Form Submission Fails After Updating Mail Queue Plugin (Conflict with: users show security, bugs, compatibility pain that may indicate a product gap.

Mail Queue · Elementor Form Submission Fails After Updating Mail Queue Plugin (Conflict with Description : Hello, my website is built using Elementor Pro , and I have enabled Google reCAPTCHA V3 for form protection. complaint HTML in Notifications

HTML in Notifications: users show security, bugs, compatibility pain that may indicate a product gap.

Notification – Custom Notifications and Alerts for WordPress · HTML in Notifications I have a simple notification that sends text and a URL link. mixed Good, but badly needs capacity for bulk spam deletion

Good, but badly needs capacity for bulk spam deletion: users show security, performance, missing feature pain that may indicate a product gap.

Flamingo · Good, but badly needs capacity for bulk spam deletion Flamingo is a decent plugin for message storage with CF7 – it does exactly what it advertises. complaint Couldn’t activate because of “fatal error”

Couldn’t activate because of “fatal error”: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Schedule Notice · Couldn’t activate because of “fatal error” I couldn’t activate this plugin because of a fatal error wordpress is warning me about: Fatal error : Uncaught Exception: DateTimeZone::__construct(): Unknown or bad timezone () in /home/nedb/public_html/camrent/wp-content/plugins/simple-schedule-notice/simple-schedule-notice.php:47 Stack trace: #0 /home/nedb/public complaint Submit fails with timeout (reopen issue)

Submit fails with timeout (reopen issue): users show security, bugs, performance pain that may indicate a product gap.

reCAPTCHA for MW WP Form · Submit fails with timeout (reopen issue) details: https://wordpress.org/support/topic/submit-fails-with-timeout/ This issue has not yet been resolved. complaint MW_WP_Form_Abstract_Validation_Ruleでのエラー

MW_WP_Form_Abstract_Validation_Ruleでのエラー: users show security, bugs, compatibility pain that may indicate a product gap.

reCAPTCHA for MW WP Form · MW_WP_Form_Abstract_Validation_Ruleでのエラー MW WP FORMを使用しているwordpress（5．3.6）にreCAPTCHA for MW WP Formを入れると、下記のエラーが出ます。どのように対処したらいいでしょうか？ `Fatal error: Uncaught Error: Class ‘MW_WP_Form_Abstract_Validation_Rule’ not found in /www/main/wp-content/plugins/recaptcha-for-mw-wp-form/classes/recaptcha-v3.php:9 Stack trace: #0 /www/main/wp-content/plugins/recaptcha-fo complaint Submit fails with timeout

Submit fails with timeout: users show security, bugs, performance pain that may indicate a product gap.

reCAPTCHA for MW WP Form · Submit fails with timeout Hi, I’m use this plugin with MW WP Form that have 3 pages of input, confirmation and thanks page. complaint There has been a critical error on this website while testing mail

There has been a critical error on this website while testing mail: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Zoho Mail for WordPress · There has been a critical error on this website while testing mail Hello team, i got into this strange error today which i came to know when my form started throwing submission error and i wasn’t able to pinpoint the issue. complaint Google Authentication

Google Authentication: users show security, compatibility, missing feature pain that may indicate a product gap.

WP Mail SMTP SendGrid Edition · Google Authentication Hi, The plugin worked great with SendGrid using SSL. complaint Multiple Lists Checkout Subsribing issue

Multiple Lists Checkout Subsribing issue: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Add-on WooCommerce – MailPoet 3 · Multiple Lists Checkout Subsribing issue Hi, We have 3 lists to subscribe on checkout. complaint Subscribers removed from mailing lists

Subscribers removed from mailing lists: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Add-on WooCommerce – MailPoet 3 · When customers, that are already subscribed to email lists checkout without checking the “received updates via email” box they are removed from their existing lists. complaint The notification/from/array filter didn’t return a Notification object

The notification/from/array filter didn’t return a Notification object: users show bugs, compatibility, support pain that may indicate a product gap.

Notification – Custom Notifications and Alerts for WordPress · The notification/from/array filter didn’t return a Notification object Hello, I’m getting critical error while installing and configuring the Notifications plugin on the 10Web hosting websites. complaint Download all Spam entries and feed them to ChatGPT

Download all Spam entries and feed them to ChatGPT: users show security, missing feature, support pain that may indicate a product gap.

Flamingo · Download all Spam entries and feed them to ChatGPT I’m hoping someone can help me with this question. complaint Export IP addresses of form submissions?

Export IP addresses of form submissions?: users show security, support, migration pain that may indicate a product gap.

Flamingo · Export IP addresses of form submissions? complaint Update to WP 6.8

Update to WP 6.8: users show security, bugs, support pain that may indicate a product gap.

Flamingo · It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress. complaint grecaptcha is not defined error

grecaptcha is not defined error: users show security, bugs, support pain that may indicate a product gap.

Contact Form Block · grecaptcha is not defined error Uncaught ReferenceError: grecaptcha is not defined at (index):191:5 (anonymous) @ (index):191 Uncaught ReferenceError: grecaptcha is not defined at (index):191:5 (anonymous) @ (index):191 I can see the script is loaded in the page, but it still throws this error. complaint So many problems and unsecure code

So many problems and unsecure code: users show security, compatibility, pricing pain that may indicate a product gap.

Mail Subscribe List · So many problems and unsecure code Hi I think you need to review the plugin code again and stop direct access for files: /wp-content/plugins/mail-subscribe-list/index.php /wp-content/plugins/mail-subscribe-list/sml.php Regards Hi I think you need to review the plugin code again and stop direct access for files: /wp-content/plugins/mail-subscribe-list/index.p mixed Security check failed. Please try again

Security check failed. Please try again: users show security, bugs, compatibility pain that may indicate a product gap.

CryptX · Security check failed. mixed 4.0.0 Breaks Cryptx in Custom Shortcode Output

4.0.0 Breaks Cryptx in Custom Shortcode Output: users show security, bugs, compatibility pain that may indicate a product gap.

CryptX · png) ;"> <div class="tgpmpro-contact-name bottom-wrap">@</div> <div class="tgpmpro-contact-role">Title</div> <div class="tgpmpro-contact-card list-board-card" id="list-board-1515" style="display: none;"› <div class="tgpmpro-contact-card-details"> <div class="tgpmpro-contact-card-corner">@</div> <div class="tgpmpro-contact-card-name">Name</div> <div class="tg