Email provider statistics

Explore provider-level datasets, category definitions, related domains and historical adoption trends.

Data updated 2026-07-25.

Mailbox providers

Self-HostedGoogle WorkspaceMicrosoft 365Unknown / OtherGeneric / unmatched (mx*.*)ProofpointGeneric / unmatched (mail.*)Yandex 360Cloudflare Email RoutingMimecastHostingerZoho MailNamecheap Email ForwardingQQ Mail (Tencent)GoDaddyOVH MailAmazon WorkMail1&1 IONOS

Email service providers

Amazon SESSendGrid (Twilio)MailgunZendeskMailchimpMandrillHubSpotSalesforceMailjet (Sinch)Cloudflare Email RoutingBrevo (ex-Sendinblue)MimecastMailerSendNamecheap ForwardingMailChannelsProofpointElastic EmailConstant Contact

SaaS senders

ShopifyPardot (Salesforce)CodeTwo Email Signatures 365KnowBe4Statuspage (Atlassian)TrustpilotFirebase (Google)Atlassian (Jira/Confluence)BigCommerceLark / FeishuSage IntacctNetSuite (Oracle)QualtricsOracle Cloud EmailWordPress.com / WP CloudSAP SuccessFactorsDocebo (LMS)Oracle Cloud

How provider attribution works

Mailbox providers are inferred from the primary MX target. ESP and SaaS sender relationships are inferred from SPF include mechanisms. A classification describes observed infrastructure; it does not prove an exclusive or current commercial contract.

Mailbox provider portfolio · ESP portfolio · SaaS sender portfolio

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