Postmark

postmarkapp.com6 facts from DNS + HTTPLast verified 17 Sept 2026

Postmark sits behind Cloudflare. Its mail goes through Google Workspace.

CDN & edge

Confidence 95 of 100, certainCloudflarehttp17 Sept 2026

DNS

Confidence 95 of 100, certainAmazon Route 53dns17 Sept 2026

Analytics

Confidence 90 of 100, certainGoogle Tag Managerhttp17 Sept 2026

Email

MX records show the mailbox; SPF shows services allowed to send

Confidence 95 of 100, certainGoogle Workspacedns17 Sept 2026
Confidence 80 of 100, strongPostmarkdns17 Sept 2026

Support

Confidence 75 of 100, strongZendeskdns17 Sept 2026

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