Decode Cryptic Bounce Messages
Did your email bounce? Paste the server error response (e.g., 550 5.1.1 User unknown) to instantly translate it into plain English, understand if the failure is temporary or permanent, and get steps to fix it.
Real-Time Error Parsing & Remediation
Instantly decode cryptic bounce messages and server transcripts. Paste your raw error logs to automatically extract specific RFC 3463 micro-codes, distinguish between transient and permanent failures, and receive clear, actionable remediations to restore your email deliverability.
Did your email bounce? Paste the server error response (e.g., 550 5.1.1 User unknown) to instantly translate it into plain English, understand if the failure is temporary or permanent, and get steps to fix it.
Email delivery errors are confusing by design. Instead of searching Google for obscure number codes, our engine translates them instantly into clear, actionable advice.
550. They return 5.x.y (RFC 3463). Our engine parses these micro-codes to tell you exactly if it's a security policy, routing issue, or mailbox error.5.7.1, we'll tell you to check your SPF/DKIM records. If you get a 4.2.2, we'll tell you the recipient's inbox is full.Your feedback has been submitted successfully. We appreciate your help in improving our tools.