Provider guides
The checker identifies which services a domain uses and gives remediation written for that provider’s actual admin console. These are the providers it recognises.
Mailbox providers
Google Workspace
Microsoft 365
Zoho Mail
Detected automatically, with remediation shown in your report. Official documentation
Proton Mail
Detected automatically, with remediation shown in your report. Official documentation
Fastmail
Detected automatically, with remediation shown in your report. Official documentation
iCloud Mail
Detected automatically, with remediation shown in your report. Official documentation
Cloudflare Email Routing
Detected automatically, with remediation shown in your report. Official documentation
Sending services
SendGrid
Mailchimp
Amazon SES
Detected automatically, with remediation shown in your report. Official documentation
Postmark
Detected automatically, with remediation shown in your report. Official documentation
Mailgun
Detected automatically, with remediation shown in your report. Official documentation
Brevo
Detected automatically, with remediation shown in your report. Official documentation
Klaviyo
Detected automatically, with remediation shown in your report. Official documentation
HubSpot
Detected automatically, with remediation shown in your report. Official documentation
Zendesk
Detected automatically, with remediation shown in your report. Official documentation
Salesforce
Detected automatically, with remediation shown in your report. Official documentation
Intercom
Detected automatically, with remediation shown in your report. Official documentation
Security gateways
Proofpoint
Detected automatically, with remediation shown in your report. Official documentation
Mimecast
Detected automatically, with remediation shown in your report. Official documentation
Barracuda
Detected automatically, with remediation shown in your report. Official documentation