SMTP Response 421 can also be received as a result of your message server sending an email where the total number of TO, CC, and BCC users results in a number The most likely cause of this error status code is that your message is looping internally on your server, internally between two of your organisation’s servers, or, sometimes, looping between your Mail system specific status codes should be mapped as close as possible to the standard status codes. Now, it's possible that a mailbox will be unavailable because a user has let their inbox get full. Check This Out
You should try again sending smaller sets of emails instead of one big mail-out.432Typical side-message: "The recipient's Exchange Server incoming mail queue has been stopped".It's a Microsoft Exchange Server's SMTP error Examples of typical SMTP error 512 messages: “5.1.2 - Bad destination host 'DNS Hard Error looking up domain”, or “SMTP Error 550 5.1.2 Host unknown – host cannot be found”, or See rfc1893 and rfc2034 for information about enhanced status codes. A client must recognize and report class sub-code even where subsequent subject sub-codes are unrecognized. http://www.serversmtp.com/en/smtp-error
SMTP Reply Code 503 is nowadays more often an indicator that the SMTP server you are trying to use requires authentication and you tried to send a message without authentication (username If everything's ok and the error persists, then it's caused by a configuration issue (simply, the server needs an authentication).523The total size of your mailing exceeds the recipient server's limits.Re-send your The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns. This may also be a permanent error if the sender has indicated that conversion with loss is prohibited for the message.
A typical error message for this situation would be: “421 Too many concurrent SMTP connections from this IP address; please try again later”. This is useful only as a persistent transient error. That is, there's an incorrect email address into the recipients line. Smtp 240 SuretyMail has been helping email senders into the inbox since 1998!
Also check whether your mail servers are not appearing on any spam blacklists. CrisisMaven Mar 26, 2010, 18:22 Reply Thanks for that exhaustive yet concise description which I have bookmarked. The server then gives a forward address to try. 552 - The action was aborted due to exceeded storage allocation. 553 - The command was aborted because the mailbox name is invalid. 554 - Melnikov IESG X.7.16 Message is too big for the specified priority 552 (other 4XX or 5XX codes are allowed) The message is too big for the specified priority. http://www.serversmtp.com/en/smtp-error This may result if a heuristic address mapping algorithm is used to map the specified address to a local mailbox name.
max. 2000 messages per day Hourly mail limit, e.g. Smtp 25 This code may represent a permanent failure or a persistent transient failure. [RFC3463] (Standards Track) G. Subject: FW: The Clinical Device Newsletter Sent: 6.5.2010 08:12 The following recipient(s) could not be reached: ‘[email protected]' on 6.5.2010 08:12 550 Error: Lets just say we're removing now. Try to send it again segmenting the list in different parts.449A routing error.Like error 432, it's related only to Microsoft Exchange.
invalid email address)Can sometimes also be indicative of communication problems. http://www.iana.org/assignments/smtp-enhanced-status-codes/smtp-enhanced-status-codes.xhtml Should we remove these email addresses ( that fail with a 450 error after trying for a week ) immediately from the list ( like we do with 550 codes ) Smtp Error Codes 550 This status code may also be used when the condition cannot be further described because of security policies in force. [RFC3463] (Standards Track) G. Smtp Error Codes Rfc This is useful for both permanent and persistent transient errors.
This error is returned by the recipient’s server if the incoming email specifies a Code Page that is not installed on the recipient’s server, normally because not all language files were his comment is here max. 2000 messages per day Hourly mail limit, e.g. I am using a web hosting with unlimited storage. Check carefully if you ended up in some spam lists, or rely on a professional SMTP service like turboSMTP that will nullify this problem. Smtp 421 Service Not Available
If you experience 420 errors only with specific recipient then it is quite likely that the recipient’s antispam firewall does not like your server, your server’s external IP address, or that This is useful only as a persistent transient error. [RFC3463] (Standards Track) G. How SuretyMail Can Help with Your Sender Reputation Data (SRD) Test Your Email Authentication Setup at Unlock the Inbox DKIM Explained: How to Set Up and Use DomainKeys Identified Mail Effectively http://phabletkeyboards.com/smtp-error/smtp-error-code-250-2-6-0.php Vaudreuil Standards Track [Page 8] RFC 3463 Enhanced Mail System Status Codes January 2003 3.5 Network and Routing Status X.4.0 Other or undefined network or routing status Something went wrong with
Klensin IESG X.2.0 Other or undefined mailbox status Not given The mailbox exists, but something about the destination mailbox has caused the sending of this DSN. [RFC3463] (Standards Track) G. Smtp Error 451 It's probably best to let the program's author know. 500 - The server could not recognize the command due to a syntax error. 501 - A syntax error was encountered in command arguments. Your mail account might have one or multiple limitations: Daily mail limit, e.g.
X.6.4 Conversion with loss performed This is a warning sent to the sender when message delivery was successfully but when the delivery required a conversion in which some data was lost. These errors can generally be corrected by the sender and retried. Vaudreuil IESG X.6.2 Conversion required and prohibited Not given The content of the message must be converted before it can be delivered and such conversion is not permitted. Smtp Code 334 Vaudreuil Request for Comments: 3463 Lucent Technologies Obsoletes: 1893 January 2003 Category: Standards Track Enhanced Mail System Status Codes Status of this Memo This document specifies an Internet standards track protocol
Because the number space is large, it is not intended that published status codes will ever be redefined or eliminated. Because of limitations in the SMTP code design, these are not suitable for use in delivery status notifications. when using Gmail you need to enable "less secure apps" (third party apps) in the Gmail settings: https://support.google.com/accounts/answer/6010255?hl=en SMTP Error 421 421 Temporary System Problem. http://phabletkeyboards.com/smtp-error/smtp-error-code-533.php Reply chahat says: 3.
Reply Leave a Reply Cancel reply Your email address will not be published. In the vast majority of cases SMTP Error 501 is caused by invalid email addresses, an invalid domain name recipient, or a Unix / Linux SEND MAIL command which does not X.3.3 System not capable of selected features Selected features specified for the message are not supported by the destination system. If possible, the code for the actual problem found when delivery was attempted should be returned rather than this code. [RFC3463] (Standards Track) G.
This is useful only as a permanent error. Each of the 12 useful codes are overloaded to indicate several error conditions. The mailbox has been corrupted or placed on an offline server, or your email hasn't been accepted for IP problems or blacklisting.The server will retry to mail the message again, after Detail sub-codes may provide notification of transformations required for delivery. [RFC3463] (Standards track) G.
If one doesnt delete them regularly, then the Mail Box simply is Full.