Exact response pattern
250 Requested mail action okay, completedSuccessGenericProtocol
What it means
The requested SMTP command completed successfully.
Likely causes
- Normal acceptance of a command or message.
Recommended response
- Record the acceptance response and queue ID when available.
Operational rule: Preserve the complete SMTP response, remote hostname, sending IP, envelope sender and timestamp. Never diagnose from the three-digit code alone.