InboxGreen DNS Checker

Tracking since May 11, 2026.

Changelog

• May 16, 2026
  description

  Click the InboxGreen icon on any website to instantly check that domain's email DNS records.
  
  What it checks:
  - SPF: Is the domain authorized to send email?
  - DKIM: Are outgoing emails cryptographically signed?
  - DMARC: Is the domain protected against spoofing?
  
  Each record shows Pass or Missing. If something is wrong, a direct link takes you to InboxGreen.email for a full diagnostic and fix guide.
  
  Who uses this:
  - Developers checking email config before launch
  - Marketers diagnosing deliverability problems
  - IT admins auditing client domains
  
  Free to use. No signup. Works on any domain.

  Check your email DNS records in seconds -- right from your browser toolbar.
  
  Click the InboxGreen icon on any website to instantly check whether that domain's SPF, DKIM, and DMARC records are configured correctly. Or right-click any link to check that domain without leaving the page.
  
  What it checks:
  - SPF: Is the domain authorized to send email?
  - DKIM: Are outgoing emails cryptographically signed?
  - DMARC: Is the domain protected against spoofing?
  
  Unlike other SPF and DMARC checkers, InboxGreen detects when DMARC is set to p=none -- a hidden risk that looks like a pass but leaves your domain completely unprotected against spoofing.
  
  Each record shows Pass, At Risk, or Missing. If something needs fixing, a direct link takes you to InboxGreen.email for a full diagnostic report.
  
  Who uses this:
  - Developers checking DNS config before launch
  - Marketers diagnosing email deliverability problems
  - IT admins auditing client domains without opening a terminal
  
  Free. No signup. Works on any domain.

• May 16, 2026
  permissions

  activeTab

  activeTab, contextMenus

Permissions & access

Permissions

activeTabcontextMenus

Host access

https://dns.google/*

Screenshots