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Market
office 365
Office 365 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.
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56 / 72
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77.8% of this page's analysis has direct source links.
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0 rows here require auditable proof before promotion.
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Opportunity Summary
Full reportBuild 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 watchlist.
Competitors
2 shown
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
300.0K installs · 4.7
weak incumbent
-98.0%momentum
62.3weakness
9/28pain/praise
Pain still appears around bugs, compatibility despite praise for support, reliable.
miniOrange Embed Outlook Teams Calendar Events
300 installs · 5.0
praise owner
-97.5%momentum
15.3weakness
0/1pain/praise
Owned praise to avoid copying: easy, reliable.
Evidence
Open evidence explorer
complaint
Highly disappointed
Highly disappointed: users show security, bugs, support pain that may indicate a product gap.
Cloud SAML SSO – Single Sign On Login · COMPLETLY UNRELIABLE This plugin is highly insecure and overly complicated. mixed Check for existing accounts and honor the user roleCheck for existing accounts and honor the user role: users show security, bugs, missing feature pain that may indicate a product gap.
Cloud SAML SSO – Single Sign On Login · We will have hundreds of daily users on this installation. complaint Broken e-mails when using Mailgun APIPost SMTP with Mailgun API caused email deliverability scores to collapse and messages to land in junk across Gmail and Microsoft recipients.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · we were suddenly down to a horrible 1.9/10 score and started getting e-mails ending up in junk complaint All of a Sudden No Emails being Sent ERROR : Code: 400, Message: Bad Request, BoPost SMTP's Elastic Email integration stopped sending order emails across multiple sites, forcing manual workarounds while users waited for a fix.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · 5 order receipts and confirmation didn’t go out complaint Message-ID header missing angle brackets causes Google Workspace bouncesGoogle Workspace rejects transactional emails because Post SMTP omits angle brackets from Message-ID headers, and users needed an opt-in compatibility-safe fix.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · downstream Workspace recipients reject it entirely — meaning password resets, order confirmations, and any other transactional email silently fails complaint Steals your email address without asking, violates GDPRThe reviewer alleges the plugin automatically used the site admin email for unwanted messages without explicit opt-in, raising GDPR concerns.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · automatically doing it violates GDPR laws mixed Update 3.9.2: fatal error our of memoryA Post SMTP update caused out-of-memory fatal errors on multiple sites, but the vendor investigated and released a fix the next day.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · After updating Post SMTP from 3.9.1 to 3.9.2 I’m getting fatal errors with out of memory in some of my sites. mixed Post SMTP -> Settings causes fatal errorThe Post SMTP settings page crashed with a fatal class redeclaration error, and a beta build quickly resolved it.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · There has been a critical error on this website. complaint Sendgrid 400 error BadRecent Post SMTP versions caused SendGrid, Brevo, and Elastic Mail API sending failures and broken email logs, with all emails failing for at least one user until a later fix.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · Same with Elastic mail. All emails fail with their API with the recent updates. complaint Office365 SMTP API Config – A valid URL was not provided. Try Again Now.A Post SMTP Pro user cannot complete Office365 OAuth on a new multisite subsite and also cannot receive the vendor's private ticket replies.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · we can’t register any new ones complaint Cannot complete other SMTP setupPost SMTP setup and diagnostics failed with AJAX errors, blocking email configuration until a patched version fixed it.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · we urgently need this fixed... Working now complaint Lost a few hours – Elementor problemThe reviewer says the SMTP plugin removed the recipient field from Elementor form emails and caused server errors until they switched plugins.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · The plugin was removing the “To:” field from Elementor form emails and causing a “server error”. complaint Multisite Capabilities IssuePost SMTP activation on one multisite subsite can remove capabilities across the whole network, and support says a fix is available for testing.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · a single administrator being able to nuke capabilities for every site in a network complaint Continuous Email Failures due to OAuthLead form email delivery works for about a week and then fails because Gmail OAuth credentials expire in the user's setup.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · the setup works for about a week, then fails mixed Critical Error with WordfencePost SMTP failed when Wordfence tried to send an unlock email, and the user had to stay on a beta build until the fix reached a stable release.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · Installed and tested, that did fix the issue and I received the lock email just fine. mixed QRcode clash with other plugins (give)A QRcode class conflict with Give caused a critical error when opening Post SMTP settings, though the vendor had a beta fix ready.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · Both try to define a QRcode class. When trying to open Post SMTP -> Settings, a critical error is thrown. complaint Emails Not sendingContact form and WooCommerce payment emails were not sending through Post SMTP, with a beta fix suggested before support redirected the premium user to a private ticket.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · emails are not being sent to recipients or to the admins complaint This plugin has been un-verified errorThis plugin has been un-verified error: users show bugs, missing feature, pricing pain that may indicate a product gap.
Office 365 User Authentication for WordPress · This plugin has been un-verified error Hi, I’m trying to set this up on my website, but after filling in the settings I always get “This plugin has been un-verified” error. complaint Depreciation warning php-8.3Depreciation warning php-8.3: users show bugs, compatibility, support pain that may indicate a product gap.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · Depreciation warning php-8.3 I am seeing the same code depreciation errors in my WP debug log as was reported (and resolved) with regard to PHP version 8.2 here: https://wordpress.org/support/topic/depreciation-warning-php-8-2/ I’m on PHP version 8.3, Post SMPT Version 3.9.5 “PHP Deprecated: Creation of dynamic property Postman_Zend_Mail_Protocol_Smtp_Auth_C complaint Plugin un-verified error?Plugin un-verified error?: users show bugs, support, setup pain that may indicate a product gap.
Office 365 User Authentication for WordPress · Plugin un-verified error? mixed Constant “Authentication Failed” ErrorsConstant “Authentication Failed” Errors: users show bugs, missing feature, pricing pain that may indicate a product gap.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · Constant “Authentication Failed” Errors I use Post SMTP on many sites, and I also install the pro version once the free plugin is operational. mixed Post SMTP v3.9.1 – Performance FindingsPost SMTP v3.9.1 – Performance Findings: users show bugs, compatibility, performance pain that may indicate a product gap.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · Post SMTP v3.9.1 – Performance Findings WordPress multisites + standalones (APM data from New Relic) Plugin version inspected: Post SMTP 3.9.1 (distributed zip) TL;DR Post SMTP registers an extraordinary number of hook callbacks per request, driven largely by its bundled Freemius SDK. complaint Delivery time in log does not match timezone set in WPDelivery time in log does not match timezone set in WP: users show bugs, missing feature, setup pain that may indicate a product gap.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · Delivery time in log does not match timezone set in WP In WP settings i have GMT -4 set as my timezone, but the “Delivery time” column in PostSMTP is totally different from my local time. complaint Support for WordPress 4.3 & Unverfied ProblemSupport for WordPress 4.3 & Unverfied Problem: users show support, setup pain that may indicate a product gap.
Office 365 User Authentication for WordPress · Support for WordPress 4.3 & Unverfied Problem When can i expect the support for WordPress 4.3 version? complaint Unable to view the logPost SMTP version 3.9.2 broke email logs and settings for multiple users with AJAX errors until version 3.9.3 fixed it.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · After updating Post SMTP from 3.9.1 to 3.9.2, my Post SMTP Settings page and Email Logs broke. complaint Injecting Unsolicited SMTP Menu Item Into AdminA one-star review complained that Post SMTP or related plugins injected unwanted admin menu items and banners, with another user confirming dismissal did not work.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · The ‘don’t show this again’ dismissal button isn’t working! complaint Sending with SparkPost – tracking links enabledPost SMTP rewrote SparkPost email links through a tracking domain that could be blocked as spam, and the user wanted a plugin-level control disabled by default.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · There’s no setting in the plugin to control this. Is there a way to control this (hook?) and can it be incorporated into the plugin and deactivated by default? complaint Whitelist IPs and IP rangesWhitelist IPs and IP ranges: users show missing feature pain that may indicate a product gap.
Intranet and Extranet with O365 Login · Whitelist IPs and IP ranges Hi, I saw that you have a feature to blacklist certain IPs. complaint Reply-to setting is not honoredPost SMTP ignored the configured Reply-To header for Sweego test emails, causing customer replies to go to the wrong domain while a fix remained in beta.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · This would mean that customers would be replying to the wrong domain. mixed Dedicated User Role with Access to LogA shop manager needed log-only access, but the plugin permissions initially exposed settings too before the team added a separate log capability in beta.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · granting access to the logs also exposes some additional Post SMTP areas mixed The authn request isn’t signed.The authn request isn’t signed.: users show bugs, support pain that may indicate a product gap.
Cloud SAML SSO – Single Sign On Login · Our logs show this error. mixed change default role to customerchange default role to customer: users show bugs, support pain that may indicate a product gap.
Cloud SAML SSO – Single Sign On Login · change default role to customer Hi guys, thanks for this plugin, works fine so far. complaint [Performance Bug] Post SMTP fires 3 wp_posts queries on every AJAX requestA Post SMTP user reports three unnecessary database queries on every AJAX request, creating heavy load on busy LMS and WooCommerce sites.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · contributing significantly to 1.8 million wp_posts queries per day using New Relic APM complaint HTML code showing in Ninja Forms notificationsWith Post SMTP enabled, Ninja Forms notifications are sent as visible HTML text to both admins and customers, and the suggested addon does not fix it.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · All form notifications show HTML like this, to customer and to admin. complaint Post SMTP conflict with Omniva QRcode classPost SMTP's non-namespaced QR library conflicted with Omniva's QRcode class and broke the configuration page with warnings or fatal errors.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · Fatal error: Cannot declare class QRcode, because the name is already in use complaint No email logs have been generated.After upgrading Post SMTP, old logs remain in the prior table and new email activity is not visible in the plugin's log screen.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · nothing is displayed on the mail log viewing screen mixed Permissions given with Gmail APIThe user is concerned that old Gmail API permissions grant broad mailbox access and later notes setup docs omit a publishing-status step that caused confusion.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · This app wants permission to do anything you can do in your Gmail complaint No disclosure of extra cost for 365A Post SMTP reviewer says the paid Microsoft 365 integration cost was not disclosed clearly enough.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · You charge $60 a year for Post SMTP to integrate with Microsoft 365. mixed Fatal ErrorPost SMTP crashed when error logging was enabled on hosts without error_log(), and the team shipped a tested beta fix.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · error_log() was being called without checking if the function exists first complaint Woocommerce log – email errorA Post SMTP Pro Microsoft 365 error prevented at least one WooCommerce new-order email from being sent.
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App · My new order email to me did not get sent for an order.