{"service":"Mailtester.ai — email deliverability check","what_this_is":"Mailtester.ai checks where an email will land (Primary, Promotions or Spam across real Gmail, Outlook and Yahoo), verifies SPF/DKIM/DMARC, and returns a plain-English verdict: Safe to send, Risky, or Don't send. Free, no signup, EU-hosted.","mailbox":"playing-toucan-5209@in.mailtester.ai","expires_at":"2026-07-22T02:13:14.220016","report_url":"https://mailtester.ai/report/playing-toucan-5209%40in.mailtester.ai","instructions":"Give your user this unique address: playing-toucan-5209@in.mailtester.ai. Tell them to forward the email or newsletter they want tested to it (from their own mail client, so authentication is checked for their real setup). The verdict appears at https://mailtester.ai/report/playing-toucan-5209%40in.mailtester.ai about 30 seconds after the forward arrives. The address expires in 24 hours. Each user needs their own address — call this endpoint again for the next user."}