InboxMonitor and GlockApps
Use GlockApps when you want to see where a message lands in Gmail, Outlook, Yahoo, and other providers, or to score content against spam filters.
Use InboxMonitor when you want the domain's DNS and two named blocklists checked every day, without sending a seed message.
Their site: glockapps.com
Read on November 12, 2026.
Side by side
| Topic | GlockApps | InboxMonitor |
|---|---|---|
| Blacklists checked | The homepage says the free spam checker checks the sending IP against 50+ blocklists, and reputation monitoring watches the domain against 50+ industry blocklists. | PSBL and 0spam, for sending addresses the check can see. Spamhaus is not queried unless a paid key is set. A timeout or refusal is neither a listing nor a clean result. |
| How often | Inbox-placement tests run when you send them. The homepage says DMARC Analyzer accounts include SPF, DKIM, and DMARC monitoring every two hours, and uptime tools can watch authentication and blocklists. | Once a day. |
| Alerts | The homepage describes automatic tests and alerts, and notifications if a server or IP is blocklisted. | Email when a daily check gets worse. Paid plans include a weekly digest. Slack is on Agency and Agency Pro. |
| Result page | A deliverability report with inbox and spam placement, spam-filter scores, and authentication. Results can be shared by a public link. Content analysis covers size, images, links, and HTML. | A domain page in the app: a 0–100 score, Healthy, Watch, or At risk, and the finding that changed the score. |
| Price | The pricing page fetched on this date did not include dollar amounts in the text returned. This page does not quote a GlockApps price. | Free is 3 domains, no card. Starter is $39 a month or $390 a year for 25 domains. Agency is $129 or $1,290 for 100. Agency Pro is $249 or $2,490 for 300. Paid plans include a 14-day trial with no card. Add a card before it ends to stay on the plan. InboxRescue Audit is $149 once for one domain. |
They do this, we do not
- Inbox placement across Gmail, Outlook, Yahoo, and others is the core product. InboxMonitor does not send seed mail or report a folder.
- SpamAssassin, Google, and Barracuda spam scores, plus content and HTML checks, are on the homepage.
- DMARC analytics include a monthly allowance of free DMARC messages, and Google Postmaster data can be connected.
We do this, they do not
- No message is sent in order to run the check.
- The same domain page records SPF, DKIM, DMARC, MX, PTR, and the two blocklists on a daily schedule.
- The free plan does not ask for a card.
Questions
Is InboxMonitor a GlockApps alternative?
Not for inbox placement. GlockApps tells you which folder a test message reached. InboxMonitor tells you whether the DNS and two blocklists changed since yesterday.
Can I use both?
Yes. Use GlockApps before a campaign to see placement and content. Use InboxMonitor so a broken record or a PSBL or 0spam listing is an email the next day.
How is pricing different?
This page does not quote a GlockApps price, because the pricing page text fetched on November 12, 2026 did not include one. InboxMonitor's public prices are Free, $39, $129, and $249 a month, or the annual amounts on the pricing page.
Sources
- https://glockapps.com/Inbox placement across Gmail, Outlook, Yahoo, and others; free spam checker checks 50+ blocklists and SPF, DKIM, and DMARC; reputation monitoring against 50+ blocklists; SPF, DKIM, and DMARC monitoring every two hours on DMARC Analyzer accounts; alerts; shareable results; content analysis; Postmaster integration.
- https://glockapps.com/pricing/The fetched pricing page did not include dollar amounts, so no GlockApps price is quoted.