Email Health Check by MailAfiniti

About

Wondering why your emails keep landing in spam? This free extension checks any domain's email health in one click, right from your browser toolbar.

Open any website, click the icon, and instantly see whether that domain is set up to reach the inbox. You get a clear grade (A to F) plus a plain-English explanation of what is working and what needs fixing. No login, no setup, no jargon.

WHAT IT CHECKS:
• SPF — confirms only authorized servers can send email for the domain
• DKIM — verifies emails are digitally signed and not tampered with
• DMARC — checks protection against spoofing and phishing
• MX — confirms the domain can receive email at all

WHO IT IS FOR:
• Small business owners who want their emails to actually get read
• Marketers checking sender domains before a campaign
• Developers and IT admins auditing client domains
• Anyone tired of legitimate email getting buried in spam

Every result comes with a clear next step. When something is wrong, you get a direct link explaining how to fix it.

Built by MailAfiniti — business email hosting that handles SPF, DKIM, and DMARC for you automatically.

PRIVACY: This extension only reads the domain of the tab you are actively viewing, and only when you click the icon. We do not track your browsing, read page content, or collect personal data.