Title: DeliverScope Author: chillichalli Published: June 5, 2026 Last modified: June 5, 2026 --- Search plugins ![](https://ps.w.org/deliverscope/assets/banner-772x250.png?rev=3562440) ![](https://ps.w.org/deliverscope/assets/icon-256x256.png?rev=3562440) # DeliverScope By [chillichalli](https://profiles.wordpress.org/chillichalli/) [Download](https://downloads.wordpress.org/plugin/deliverscope.1.0.4.zip) * [Details](https://wordpress.org/plugins/deliverscope/#description) * [Reviews](https://wordpress.org/plugins/deliverscope/#reviews) * [Installation](https://wordpress.org/plugins/deliverscope/#installation) * [Development](https://wordpress.org/plugins/deliverscope/#developers) [Support](https://wordpress.org/support/plugin/deliverscope/) ## Description **“Why didn’t I get your email?”** Sound familiar? WordPress email failures are silent killers: * **Password resets** never arrive frustrated users * **Order confirmations** go missing support tickets pile up * **Contact form submissions** vanish lost leads and revenue Most site owners don’t know their emails are failing until customers complain. By then, the damage is done. **DeliverScope gives you complete visibility into your WordPress email system.** #### Free Features * **SMTP Configuration** – Easy setup for Gmail, SendGrid, Mailgun, and any SMTP provider * **Connection Tester** – Verify your SMTP credentials work _before_ saving * **Test Emails** – Send a real email to confirm end-to-end delivery * **Email Logging** – Track every email with timestamps, status, and latency #### Pro Features * **DNS Health Check** – Instant SPF & DMARC analysis to improve deliverability * **Scheduled Canary Tests** – Automated emails every 5-60 minutes catch failures instantly * **Instant Alerts** – Get notified via Slack or custom webhook when emails fail * **Blacklist Monitoring** – Daily checks against 6 major DNSBLs (Spamhaus, Barracuda, SpamCop, etc.) * **Priority Support** – Direct access to our team when you need help #### Plan Comparison **Free** (1 site) ✓ SMTP configuration, connection tester, test emails, email logging **Personal** – $49/year (1 site) ✓ Everything in Free ✓ DNS health checks ✓ Scheduled canary tests (5-60 min) ✓ Instant alerts (Slack/webhook) ✓ Priority support **Agency** – $99/year (5 sites) or $199/year (unlimited) ✓ Everything in Personal ✓ Blacklist monitoring #### Why DeliverScope? **vs. Default WordPress email:** wp_mail() fails silently. No logs, no alerts, no way to know something’s wrong. **vs. Other SMTP plugins:** Most plugins only _configure_ SMTP. DeliverScope **monitors** it and alerts you to problems. **vs. External services:** No complex setup or monthly fees. DeliverScope lives inside WordPress where your emails originate. #### Works With Any Email Provider * Google Workspace / Gmail * Microsoft 365 / Outlook * SendGrid, Mailgun, Postmark * Amazon SES * Any SMTP server ## Screenshots * [[ * SMTP configuration with connection tester * [[ * DNS health check showing SPF and DMARC status * [[ * Email send log with delivery status * [[ * Blacklist monitor showing clean status ## Installation 1. Upload `deliverscope` to `/wp-content/plugins/` or install via WordPress plugins screen 2. Activate the plugin 3. Go to **DeliverScope Settings** and enter your SMTP details 4. Click **Test Connection** to verify credentials 5. Click **Send Test** to confirm delivery That’s it! Your emails are now configured and testable. **Want automated monitoring?** [Upgrade to Pro](https://chillichalli.com/deliverscope) for scheduled canary tests, instant alerts, and blacklist monitoring. ## FAQ ### Is DeliverScope really free? Yes! SMTP configuration, connection testing, and email logging are **100% free forever**. No trial periods, no feature limitations on core functionality. Pro features like scheduled tests, alerts, and blacklist monitoring require an upgrade. ### What do I get with Pro? Complete automated monitoring: * **Scheduled Canary Tests** – Automated emails every 5-60 minutes catch failures even at 3am * **Instant Alerts** – Slack and webhook notifications the moment an email fails * **Blacklist Monitoring** – Daily checks against major spam blacklists with alerts if listed * **DNS Health Check** – SPF & DMARC analysis to optimize deliverability ### Will this slow down my site? No. DeliverScope only runs in the admin dashboard and during scheduled checks (Pro). Zero impact on your frontend performance. ### Which SMTP providers are supported? Any provider that supports standard SMTP authentication: Gmail, Outlook, SendGrid, Mailgun, Postmark, Amazon SES, and more. ### How do canary tests work? Pro users can schedule automated test emails every 5, 15, 30, or 60 minutes. If a canary email fails, you’re notified immediately via Slack or webhook so you can fix the issue before customers notice. ### What blacklists do you check? We check 6 major DNSBLs: Spamhaus ZEN, Barracuda, SpamCop, SORBS, PSBL, and UCEPROTECT. Checks run daily and you’re alerted immediately if your IP is listed. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “DeliverScope” is open source software. The following people have contributed to this plugin. Contributors * [ chillichalli ](https://profiles.wordpress.org/chillichalli/) [Translate “DeliverScope” into your language.](https://translate.wordpress.org/projects/wp-plugins/deliverscope) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/deliverscope/), check out the [SVN repository](https://plugins.svn.wordpress.org/deliverscope/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/deliverscope/) by [RSS](https://plugins.trac.wordpress.org/log/deliverscope/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.4 * **Rebrand:** Plugin renamed to DeliverScope. No functional changes. #### 1.0.3 * **Compatibility:** Tested with WordPress 7.0. #### 1.0.2 * **Maintenance:** Reworked the release build and removed development tooling from the distributed package for a leaner download. No functional changes. #### 1.0.0 * **New:** Instant Alerts – Slack and webhook notifications for email failures * **New:** Blacklist Monitoring – Daily checks against 6 major DNSBLs * **New:** Configurable canary interval (5, 15, 30, or 60 minutes) * **New:** Logs UI with filtering by context and status * **Improved:** Alerts sent asynchronously to avoid blocking email sends * **Improved:** Comprehensive admin settings with Pro feature sections #### 0.2.2 * Merged Lite and Pro into single freemium plugin * Added SMTP connection tester (test without sending email) * Added dismissible upgrade notices * Improved input sanitization and security * Added PHPUnit test coverage #### 0.2.1 * Initial release * SMTP configuration wizard * DNS checks for SPF and DMARC * Email send logging ## Meta * Version **1.0.4** * Last updated **23 hours ago** * Active installations **Fewer than 10** * WordPress version ** 6.3 or higher ** * Tested up to **7.0** * PHP version ** 7.4 or higher ** * Tags * [deliverability](https://wordpress.org/plugins/tags/deliverability/)[email](https://wordpress.org/plugins/tags/email/) [email log](https://wordpress.org/plugins/tags/email-log/)[monitoring](https://wordpress.org/plugins/tags/monitoring/) [smtp](https://wordpress.org/plugins/tags/smtp/) * [Advanced View](https://wordpress.org/plugins/deliverscope/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/deliverscope/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/deliverscope/reviews/) ## Contributors * [ chillichalli ](https://profiles.wordpress.org/chillichalli/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/deliverscope/)