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Message msg_9f2c81

invoice@acme.com · sent via acme.com · 2 min ago

Final status
Bounced · hard
Vendor path
SGSendGrid(failover to SES pending)
SMTP reply
550 5.7.1

Journey

Accepted via SMTP09:38:12.041 UTC

From app-server-03 · AUTH relay-user billing-app · TLS 1.3 · 14.2 KB

Routing decision09:38:12.118 UTC

Rule acme.com → SendGrid matched (priority 10) · circuit closed

Handed to SendGrid09:38:12.402 UTC

API accepted · vendor message id sg-8f2c19aa

Bounce webhook received09:38:14.911 UTC

Remote MX: gmail-smtp-in.l.google.com · 550 5.7.1 Our system has detected an unusual rate of unsolicited mail

◈LLM note: this bounce is part of cluster diag_441 — 1,204 similar rejections in 40 min. Failover to AWS SES proposed.
Awaiting failover approval—

A human approver can re-route affected traffic.

Raw payload

# webhook payload · sendgrid · event=bounce
{
  "event": "bounce",
  "type": "hard",
  "email": "invoice@acme.com",
  "sg_message_id": "sg-8f2c19aa",
  "smtp-id": "<msg_9f2c81@mailops.internal>",
  "status": "5.7.1",
  "reason": "550 5.7.1 Our system has detected an unusual rate of unsolicited mail originating from your IP address.",
  "timestamp": 1755502694,
  "tls": true
}