GlockApps is an email deliverability testing and monitoring platform that allows email marketers, developers, and deliverability specialists to test where their emails land across 60+ major email providers, diagnose authentication issues, monitor blacklists, and track sender reputation — all from a single dashboard purpose-built for deliverability troubleshooting.
Product Overview
GlockApps is the specialist tool for diagnosing and resolving email deliverability problems before they affect campaign performance at scale. Its Inbox Insight test sends a copy of the email to a network of real seed email accounts at Gmail, Yahoo, Outlook, Apple Mail, AOL, and 50+ other providers — then reports exactly where the email landed (inbox, spam, promotions, updates tab) at each provider. This multi-provider placement test reveals provider-specific deliverability problems that are invisible when testing from a single inbox. GlockApps's SPAM Test analyses the email content and headers, running it through the major spam filter engines (SpamAssassin, Barracuda, SpamCop) and generating a score with specific recommendations for improving it. Its Authentication Check validates SPF, DKIM, and DMARC configuration against best practices — a common source of deliverability problems that is easy to misconfigure but hard to diagnose without specialist tooling. The Blacklist Monitor watches 50+ major IP and domain blacklists for the sender's IP addresses and domains, sending immediate alerts if a blacklisting event occurs.
Key Features
- Inbox Placement Testing: Send test emails to 60+ provider seed accounts — see exactly where your email lands (inbox, spam, promotions) at each ISP.
- Spam Filter Analysis: Run emails through SpamAssassin, Barracuda, and other major filters — identify and fix content triggers before sending live campaigns.
- Authentication Check: Validate SPF, DKIM, and DMARC configuration — identify and resolve authentication misconfigurations that cause deliverability failures.
- Blacklist Monitor: Monitor 50+ major IP and domain blacklists — receive immediate alerts when a blacklisting event affects your sending infrastructure.
- DMARC Analytics: Analyse DMARC aggregate reports — identify unauthorised sources sending on behalf of your domain and phishing attempts.
Best For
Email marketers, developers, and deliverability specialists that need to diagnose provider-specific inbox placement issues, validate email authentication configuration, and monitor sending reputation across multiple IP addresses and domains.
Pricing
Free (limited tests). Starter: $9/month. Essential: $29/month. Scale: $59/month. Pay-per-test also available.
Key Integrations
Mailchimp, SendGrid, Mailgun, Postmark, Amazon SES, Campaign Monitor, Klaviyo, ActiveCampaign, HubSpot, Zapier
Pros
- 60+ provider inbox placement testing — most comprehensive multi-ISP seed network in the category
- Spam filter analysis with actionable recommendations — not just a score but specific fixes
- DMARC analytics provide security monitoring alongside deliverability testing
- Affordable pricing with pay-per-test option for teams with variable testing needs
Cons
- No email warmup capability — pure testing and monitoring, not reputation building
- Less polished UI than newer deliverability platforms — functional but dated interface
- Advanced DMARC reporting requires a higher-tier plan
