Email Detective

Identify the technology behind any email you receive directly within your Gmail inbox. This extension detects over 120 email service providers, including beehiiv, Mailchimp, Klaviyo, and HubSpot, by adding a badge to the subject line.

Verify SPF, DKIM, and DMARC authentication to ensure emails meet security standards. It also identifies whether a sender uses a shared or dedicated IP address for deliverability research.

Marketers can use the bulk scanner to analyze up to 50 emails at once. This helps you audit competitor tech stacks or evaluate a potential client's current email infrastructure without leaving your browser.\n\nKey features include:

• ESP detection for 120+ providers.

• Authentication checks for SPF, DKIM, and DMARC.

• Bulk scanning for up to 50 emails.

Agencies and deliverability specialists can use these details to troubleshoot sender reputation or perform market research. It replaces manual header analysis by displaying key infrastructure data directly in the Gmail interface.