This feature is known as DSN (Delivery Status Notification) codes. Example: 501 5.5.4 Syntax: MAIL FROM:501 5.5.4 Syntax: RSET 501 5.5.4 Bad message size syntax 555 5.5.4 Unsupported option: k X.5.5 Wrong protocol version A protocol version mis-match existed Please try the request again. This status code should be used for positive delivery reports. [RFC3463] (Standards Track) G. http://dssoundware.com/error-codes/easymail-smtp-error-codes.php
Performing DNS lookup: smtpout.secureserver.net Connecting to: 126.96.36.199 connection error: 0 Reply chahat says: 3. Network issues are assumed to be under the control of the destination or intermediate system administrator. This is useful only as a permanent error. Forgot your password? https://tools.ietf.org/html/rfc3463
X can be a 4 or a 5 depending on is its Temporary or Permanent. It must be used for all errors for which only the error class is known. The general semantics imply that the individual recipient may not be able to delete material to make room for additional messages.
Vaudreuil IESG X.4.6 Routing loop detected Not given A routing loop caused the message to be forwarded too many times, either because of incorrect routing tables or a user- forwarding loop. is there a way of resolving this, maybe increase the limit? These errors can generally be corrected by the sender and retried. [RFC3463] (Standards track) G. Smtp Error Codes Wikipedia Authentication required 531 - Mail system Full 533 - Remote server has insufficient disk space to hold email 534 - Authentication mechanism is too weak.
The second sub-code indicates the probable source of any delivery anomalies, and the third sub-code indicates a precise error condition. Smtp Server Error Codes An example of this situation is when the sender types a wrong domain name like “gnail” instead of “gmail”. This is useful only as a permanent error. [RFC3463] (Standards Track) G. http://www.serversmtp.com/en/smtp-error Acknowledgement Funding for the RFC Editor function is currently provided by the Internet Society.
The SMTP theory of reply codes are partitioned in the number space in such a manner that the remaining available codes will not provide the space needed. Smtp Error Codes Rfc X.4.XXX Network and Routing Status The networking or routing codes report status about the delivery system itself. This can apply to any field in the address. This condition might be temporary, for example the server is operating in a mode where only higher priority messages below certain size are accepted for transfer and delivery. [RFC6710] (Standards Track)
Modified the text describing the persistent transient failure to more closely reflect current practice and understanding. http://www.inmotionhosting.com/support/email/email-troubleshooting/smtp-and-esmtp-error-code-list Vaudreuil IESG X.4.5 Mail system congestion 451 The mail system was unable to deliver the message because the mail system was congested. Smtp Enhanced Status Codes Both the sender and recipient must permit the exchange of messages and arrange the exchange of necessary keys and certificates for cryptographic operations. 3. Smtp Error Codes 554 Example: 503 5.5.1 Error: send HELO/EHLO first This problem must be resolved on the sender mail system.
This code should be used as a permanent failure. check my blog Many times you see both types of code combined (e.g. 550 5.1.1 User unknown). This status code may also be used when the condition cannot be further described because of security policies in force. This code should be used as a persistent transient failure. [RFC3463] (Standards Track) G. Smtp Error Codes And Acknowledgements
Example: C> MAIL FROM:
This condition might be temporary, for example the server is operating in a mode where only higher priority messages are accepted for transfer and delivery, while lower priority messages are rejected. Smtp Error Codes 550 This error code occurs after a successful authentication to a disabled account. Table of Contents 1.
Example: C> MAIL FROM:
Detail sub-codes may provide notification of transformations required for delivery. [RFC3463] (Standards track) G. Network issues are assumed to be under the control of the destination or intermediate system administrator. [RFC3463] (Standards track) G. This may indicate both a permanent failure if the mailbox is not intended to be enabled in the future or a transient failure if the mailbox is just temporarily disabled. http://dssoundware.com/error-codes/elf-error-codes.php X.7.5 Cryptographic failure A transport system otherwise authorized to validate or decrypt a message in transport was unable to do so because necessary information such as key was not available or
The sender system will have to assume this code and queue the message for a later delivery.