Provider guides
When you check a domain, we work out which email services it uses and write the fix for that provider’s own settings screen. These are the providers we recognise.
Mailbox providers
Google Workspace
Microsoft 365
Zoho Mail
Proton Mail
Recognised automatically, with the fix shown in your report. Official documentation
Fastmail
Recognised automatically, with the fix shown in your report. Official documentation
iCloud Mail
Recognised automatically, with the fix shown in your report. Official documentation
Cloudflare Email Routing
Recognised automatically, with the fix shown in your report. Official documentation
Sending services
SendGrid
Mailchimp
Amazon SES
Postmark
Mailgun
Brevo
Klaviyo
Recognised automatically, with the fix shown in your report. Official documentation
HubSpot
Recognised automatically, with the fix shown in your report. Official documentation
Zendesk
Recognised automatically, with the fix shown in your report. Official documentation
Salesforce
Recognised automatically, with the fix shown in your report. Official documentation
Intercom
Recognised automatically, with the fix shown in your report. Official documentation
Security gateways
Proofpoint
Recognised automatically, with the fix shown in your report. Official documentation
Mimecast
Recognised automatically, with the fix shown in your report. Official documentation
Barracuda
Recognised automatically, with the fix shown in your report. Official documentation