WPIntell

deliverability

Deliverability – pass DKIM, SPF, DMARC & more

Check and improve your Email Deliverability. Pass DMARC by DKIM-signing your emails without an external SMTP. Comply with Google & Yahoo requirements!

deliverability dkim dmarc email spf
33.4 Open evidence Open API Open on WordPress.org
800
11.6K
4.2
0
14
12

Proof Health

Open evidence

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

64 / 86 rows with source links

74.4% of this page's analysis has direct source links.

0 build-decision rows missing links

0 rows here require auditable proof before promotion.

22 rows with no attached evidence

0 rows have source counts but still need direct links.

Download Momentum

180 days
74 111 -33.3% 690

Source Evidence

Open evidence explorer
complaint support · high severity · relevance 1.0
installation across multiple sites

installation across multiple sites: users show bugs, compatibility, performance pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
installation across multiple sites The plugins is working very well so far in testing.
complaint support · high severity · relevance 0.98
PHP Fatal error when sending e-mail

PHP Fatal error when sending e-mail: users show security, bugs, compatibility pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
PHP Fatal error when sending e-mail greetings, since installing Deliverability, my initial tests with WPForms worked well, however since this time we have discovered that other e-mails from WordPress are crashing PHP and temporarily take the site offline.
complaint support · high severity · relevance 0.96
DKIM-Signature stopped being applied to the outbound mail.

DKIM-Signature stopped being applied to the outbound mail.: users show bugs, compatibility, support pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
Sometime in April the DKIM-Signature stopped being applied to the outbound mail.
complaint support · high severity · relevance 0.91
PHP Fatal error on contact form 7 submissions

PHP Fatal error on contact form 7 submissions: users show bugs, compatibility, setup pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
PHP Fatal error on contact form 7 submissions Hello, Thanks for the plugin.
complaint support · high severity · relevance 0.85
Cannot activate; fatal error

Cannot activate; fatal error: users show bugs, compatibility pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
Cannot activate; fatal error I’m getting this upon activating deliverability.
praise review · high severity · relevance 0.66
Excellent plugin …

Excellent plugin …: users show security, missing feature, setup pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
Excellent plugin … I’m seriously impressed with this plugin.
praise review · high severity · relevance 0.6
This is how to DKIM sign your website’s emails

This is how to DKIM sign your website’s emails: users show security, setup pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
This is how to DKIM sign your website’s emails The Deliverability plugin for WordPress is a must-have for anyone looking to improve their email security and protect their reputation as a sender.
praise review · high severity · relevance 0.6
Great plugin

Great plugin: users show security, setup pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
Great plugin Excellent dashboard with lot of informations.
mixed support · medium severity · relevance 0.84
E_ERROR was caused on line 226

E_ERROR was caused on line 226: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
E_ERROR was caused on line 226 When seeking help with this issue, you may be asked for some of the following information: WordPress version 6.4.3 Active theme: Future (version 0.1) Current plugin: Deliverability (version 1.2.1) PHP version 8.2.15 Error Details ============= An error of type E_ERROR was caused in line 226 of the file /homepages/41/d264421148/
complaint support · medium severity · relevance 0.75
PHP warnings generated when WP cron runs

PHP warnings generated when WP cron runs: users show bugs, compatibility pain that may indicate a product gap.

Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
Proof Blocked card complete lead capture reliability Evidence linked to opportunity
PHP warnings generated when WP cron runs Hey guys, Using PHP 8.1, WordPress 6.7.1 and version 1.7.0 of the Deliverability plugin, we notice a series of PHP warnings when WordPress cron runs: PHP Warning: Cannot modify header information - headers already sent in /public_html/app/plugins/deliverability/vendor-prefixed/psr-4/Auth0/SDK/Store/CookieStore.php on

Competitor Context

3 shown
WP Mail Logging praise owner · intel 55.4 · weakness 32.0
praise owner
1 unresolved support thread(s) 1 collected complaint signal(s) bugs setup 2 source links Proof Blocked Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source 1 source 2
Custom SMTP: Email Deliverability – FREE & Easy-to-use praise owner · intel 28.7 · weakness 14.3
praise owner
1 source link Proof Blocked Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source 1
Oderland SMTP & Postal Mailer praise owner · intel 20.5 · weakness 12.5
praise owner
1 source link Proof Blocked Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor mail submissions, notification delivery, spam, and CRM handoffs
source 1

Repeated Themes

0 shown

No repeated plugin-level themes have been generated yet.

Collected Signals

20 shown from 27 collected
complaint Cant make account (1 star) review · 2025-05-14T15:37:45+00:00 · medium severity · deliverability

Cant make account: users show setup pain that may indicate a product gap.

Evidence: Cant make account Unfortunate I do not recieve any email for verifications my account.
setup email lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint DKIM-Signature stopped being applied to the outbound mail. support · 2025-04-28T06:11:05+00:00 · high severity · deliverability

DKIM-Signature stopped being applied to the outbound mail.: users show bugs, compatibility, support pain that may indicate a product gap.

Evidence: Sometime in April the DKIM-Signature stopped being applied to the outbound mail.
bugs compatibility support reliable lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint CookieBot reporting problem with a cookie probably set by the plugin support · 2025-04-03T18:12:18+00:00 · medium severity · deliverability

CookieBot reporting problem with a cookie probably set by the plugin: users show bugs, setup pain that may indicate a product gap.

Evidence: CookieBot reporting problem with a cookie probably set by the plugin I’m not 100% sure but the plugin source code is the only place within the whole website installation containing the cookie name string that CookieBot complains about – this is the report: And this is the message sent us by with the cookieBot monthly report: Our recent scan of your website h
bugs setup reporting lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint Which email to use when configuring the plugin? support · 2025-02-15T22:42:49+00:00 · medium severity · deliverability

Which email to use when configuring the plugin?: users show setup pain that may indicate a product gap.

Evidence: Which email to use when configuring the plugin?
setup email lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint PHP warnings generated when WP cron runs support · 2025-01-21T16:26:55+00:00 · medium severity · deliverability

PHP warnings generated when WP cron runs: users show bugs, compatibility pain that may indicate a product gap.

Evidence: PHP warnings generated when WP cron runs Hey guys, Using PHP 8.1, WordPress 6.7.1 and version 1.7.0 of the Deliverability plugin, we notice a series of PHP warnings when WordPress cron runs: PHP Warning: Cannot modify header information - headers already sent in /public_html/app/plugins/deliverability/vendor-prefixed/psr-4/Auth0/SDK/Store/CookieStore.php on
bugs compatibility performance form lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint No DKIM after regen support · 2024-11-25T15:33:13+00:00 · medium severity · deliverability

No DKIM after regen: users show missing feature, setup pain that may indicate a product gap.

Evidence: The “Settings” and “Dashboard” tabs both show DKIM as being properly configured.
missing feature setup dashboard lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
praise Excellent plugin … (5 stars) review · 2024-11-19T17:43:55+00:00 · high severity · deliverability

Excellent plugin …: users show security, missing feature, setup pain that may indicate a product gap.

Evidence: Excellent plugin … I’m seriously impressed with this plugin.
security missing feature setup easy lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
praise Very helpfull (5 stars) review · 2024-10-17T14:36:42+00:00 · medium severity · deliverability

Very helpfull: users show support pain that may indicate a product gap.

Evidence: Very helpfull A plugin like this was much needed in the WordPress repository.
support quality email lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint PHP Fatal error when sending e-mail support · 2024-09-27T08:28:01+00:00 · high severity · deliverability

PHP Fatal error when sending e-mail: users show security, bugs, compatibility pain that may indicate a product gap.

Evidence: PHP Fatal error when sending e-mail greetings, since installing Deliverability, my initial tests with WPForms worked well, however since this time we have discovered that other e-mails from WordPress are crashing PHP and temporarily take the site offline.
security bugs compatibility missing feature lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint No support, no DKIM (1 star) review · 2024-08-18T18:28:49+00:00 · medium severity · deliverability

No support, no DKIM: users show support pain that may indicate a product gap.

Evidence: No support, no DKIM I added DKIM, but it does not recognize it, I tried few times, and waited weeks, nothing, I contacted developer via email, no reply, will change review if developer will reply, my email redasgms@gmail.com I added DKIM, but it does not recognize it, I tried few times, and waited weeks, nothing, I contacted developer via email, no reply, wi
support value email lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint DKIM Publishing issue support · 2024-07-01T06:13:22+00:00 · medium severity · deliverability

DKIM Publishing issue: users show bugs, setup pain that may indicate a product gap.

Evidence: DKIM Publishing issue Hi, We have installed the plugin and generated DKIM TXT record and published the same in our DNS record.
bugs setup lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint installation across multiple sites support · 2024-04-25T18:59:34+00:00 · high severity · deliverability

installation across multiple sites: users show bugs, compatibility, performance pain that may indicate a product gap.

Evidence: installation across multiple sites The plugins is working very well so far in testing.
bugs compatibility performance missing feature lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
praise Great plugin (5 stars) review · 2024-03-18T21:41:54+00:00 · medium severity · deliverability

Great plugin: users show missing feature, setup pain that may indicate a product gap.

Evidence: Great plugin I really like this plugin.
missing feature setup quality lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint PHP Fatal error on contact form 7 submissions support · 2024-02-28T11:13:15+00:00 · high severity · deliverability

PHP Fatal error on contact form 7 submissions: users show bugs, compatibility, setup pain that may indicate a product gap.

Evidence: PHP Fatal error on contact form 7 submissions Hello, Thanks for the plugin.
bugs compatibility setup quality lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
mixed E_ERROR was caused on line 226 support · 2024-02-09T20:09:36+00:00 · medium severity · deliverability

E_ERROR was caused on line 226: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Evidence: E_ERROR was caused on line 226 When seeking help with this issue, you may be asked for some of the following information: WordPress version 6.4.3 Active theme: Future (version 0.1) Current plugin: Deliverability (version 1.2.1) PHP version 8.2.15 Error Details ============= An error of type E_ERROR was caused in line 226 of the file /homepages/41/d264421148/
bugs compatibility missing feature support lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint DMARC no reporting address support · 2024-02-09T19:34:26+00:00 · medium severity · deliverability

DMARC no reporting address: users show support pain that may indicate a product gap.

Evidence: Here’s my DMARC record, and I am receiving email with XML reports.
support email lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
complaint Cannot activate; fatal error support · 2024-02-08T19:46:56+00:00 · high severity · deliverability

Cannot activate; fatal error: users show bugs, compatibility pain that may indicate a product gap.

Evidence: Cannot activate; fatal error I’m getting this upon activating deliverability.
bugs compatibility lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
praise A standout plugin (5 stars) review · 2023-12-14T12:06:15+00:00 · medium severity · deliverability

A standout plugin: users show missing feature pain that may indicate a product gap.

Evidence: A standout plugin The plugin offers a straightforward and user-friendly experience.
missing feature easy reliable email lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
praise It makes checking email deliverability a breeze (5 stars) review · 2023-11-28T12:05:11+00:00 · medium severity · deliverability

It makes checking email deliverability a breeze: users show performance, pricing, support pain that may indicate a product gap.

Evidence: It makes checking email deliverability a breeze The plugin is very well made and the code is organized and clean which is truly a plus, an added value in the sea of plugins that often bring down the performance of websites due to the poor quality of the written code.
performance pricing support value lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin
praise A gem of features (5 stars) review · 2023-11-27T13:44:44+00:00 · medium severity · deliverability

A gem of features: users show missing feature pain that may indicate a product gap.

Evidence: A gem of features This plugin covers a wide range of features in a particular niche of email deliverability.
missing feature email lead capture reliability Proof Blocked card complete Evidence linked to opportunity
Buyer: marketing teams, agencies, and lead-generation site owners · Wedge: monitor email submissions, notification delivery, spam, and CRM handoffs
source plugin