This error message contains important information to help your email provider resolve this issue. X.4.3 Directory server failure The network system was unable to forward the message, because a directory server was unavailable. Overview ......................................................2 2. thereby updating [RFC4468]. [RFC5248] (Best current practice) T. check over here
SMTP is a simple ASCII protocol. What are Comcast's outbound mail servers? The mailbox has been corrupted or placed on an offline server, or your email hasn't been accepted for IP problems or blacklisting. These status codes are used for media and language independent status reporting. internet
These system components include any necessary infrastructure such as directory and routing services. What does this mean? Message content or media issues are under the control of both the sender and the receiver, both of which must support a common set of supported content-types. This error message contains important information to help your email provider resolve this issue.
A message sent a Pen Publishing account is forwarded to another mailbox; if that account is set to forward to Pen Publishing, then a mail loop is created: mail goes from E-mail Etiquette Books Whether you are new to e-mail etiquette or a seasoned Netizen I have an e-mail etiquette book to meet your needs. Requests submitted through this form are monitored 24 hours a day, 7 days a week to ensure a timely response. Smtp Error Code 550 Hansen, J.
This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, This error results when the lookup failed. X.5.2 Syntax error A mail transaction protocol command was issued which could not be interpreted, either because the syntax was wrong or the command is unrecognized. http://www.iana.org/assignments/smtp-enhanced-status-codes/smtp-enhanced-status-codes.xhtml This code is only useful for permanent failures. [RFC3463] (Standards Track) G.
Vaudreuil Standards Track [Page 6] RFC 3463 Enhanced Mail System Status Codes January 2003 X.1.6 Destination mailbox has moved, No forwarding address The mailbox address provided was at one time valid, Smtp Error Codes This is useful only as a permanent error. This error should be treated as a temp-fail and can be retried. This may result if a heuristic address mapping algorithm is used to map the specified address to a local mailbox name.
This status code should be used for positive delivery reports. It's a normal transfer action. 252 The server cannot verify the user, but it will try to deliver the message anyway. Message Undeliverable Error Text This may be useful as a permanent or persistent temporary notification. 3.8 Security or Policy Status X.7.0 Other or undefined security status Something related to security caused the message to be Undeliverable Email Outlook Vaudreuil IESG X.2.1 Mailbox disabled, not accepting messages Not given The mailbox exists, but is not accepting messages.
X.3.5 System incorrectly configured The system is not configured in a manner that will permit it to accept this message. check my blog X.5.3 Too many recipients More recipients were specified for the message than could have been delivered by the protocol. This is useful only as a permanent error. [RFC3463] (Standards Track) G. Enumerated Status Codes .......................................5 3.1 Other or Undefined Status ...................................6 3.2 Address Status ..............................................6 3.3 Mailbox Status ..............................................7 3.4 Mail system status ..........................................8 3.5 Network and Routing Status ..................................9 3.6 Mail Smtp Code 554
For Internet mail names, this means the address portion to the left of the "@" sign is invalid. IP and host names for Comcast's outbound mail servers. Author's Address Gregory M. this content Vaudreuil IESG X.5.5 Wrong protocol version Not given A protocol version mis-match existed which could not be automatically resolved by the communicating parties. [RFC3463] (Standards Track) G.
Vaudreuil Standards Track [Page 13] RFC 3463 Enhanced Mail System Status Codes January 2003 Appendix A - Collected Status Codes X.1.0 Other address status X.1.1 Bad destination mailbox address X.1.2 Bad Message Undeliverable Text Comcast uses these lists to protect its subscribers from receiving spam.How do I remediate the block?It is important that your email provider is aware of their outbound spam problem to avoid You have been blocked from sending to the Comcast network because we have determined that you are sending email from a dynamic/residential IP address within the Comcast domain.
This may be a permanent error if the mailbox will never be re-enabled or a transient error if the mailbox is only temporarily disabled. [RFC3463] (Standards Track) G. SERVFAIL response. 99.9% means that the DNS somewhere up the auth tree is misconfigured or down or very badly overloaded. 421 - [Try again later] This error results for several reasons. You can try again later.
Comcast uses these lists to protect its subscribers from receiving spam.How do I remediate the block?It is important that your email provider is aware of their outbound spam problem to avoid Vaudreuil IESG X.5.4 Invalid command arguments 451, 501, 502, 503, 504, 550, 555 A valid mail transaction protocol command was issued with invalid arguments, either because the arguments were out of Kucherawy IESG X.7.23 SPF validation failed 550 This status code is returned when a message completed an SPF check that produced a "fail" result, contrary to local policy requirements. CODE MEANING HOW TO SOLVE IT / WHAT TO DO 101 The server is unable to connect.
If this code accompanies a delivery failure report, sending in the future may be successful. [RFC3463] (Standards track) G. You must ask the recipient to whitelist you. 550 It usually defines a non-existent email address on the remote side. This status code may also be used when the condition cannot be further described because of security policies in force. Generated Mon, 31 Oct 2016 01:39:14 GMT by s_wx1194 (squid/3.5.20)
That is, there's an incorrect email address into the recipients line. Back to Accrisoft.com Back to top Simple Mail Transfer Protocol (SMTP) Enhanced Status Codes Registry Created 2008-05-29 Last Updated 2015-08-24 Available Formats XML HTML Plain text Registries included below Class Sub-Codes SMTP is a protocol governing electronic mail transmission and reception (sending and receiving emails between mail servers). This can apply to any field in the address.
Vaudreuil IESG X.4.YYY Network and Routing Status The networking or routing codes report status about the delivery system itself. This code should be used as a permanent failure. [RFC3463] (Standards Track) G. This page was designed to address questions on the following topics: What do I need to know to avoid blocks when sending to Comcast? When contacting your email provider, you should include the error message contained in the email that alerted you to this problem.
Another cause is they have "leave mail on server" checked in their email program which then does not allow their email account to be cleared as all email is "left on Vaudreuil IESG X.6.1 Media not supported Not given The media of the message is not supported by either the delivery protocol or the next system in the forwarding path. This is useful only as a persistent transient error. [RFC3463] (Standards Track) G.