503 Error First Have Must Recipient Request Sender Sending
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error message is sent to the client before hMailServer disconnects the client. The SMTPtimeout in hMailServer is 10 minutes. 421 Excessive amounts of data sent to server. This error is generated by hMailServer if smtp error codes 550 a client sends a large chunk of data to hMailServer not containing a
Sent: 530 Smtp Authentication Is Required.
newline character (command terminator). A client should never do this, but incorrectly configured clients could cause this problem. 451 Please
You Have Received Data Which Was Not Sent By The Line Servers
try again later. This error message is issued if grey listing is enabled, and the sender, recipient and IP address triplet does not match an existing greylisting triplet. 500 Line too long If
Smtp Error Code 554
a SMTPclient sends a SMTP command which hMailServer considers beeing too long, hMailServer issues this error. This error typically indicates a client defect or a hacking attempt. 501 EHLO Invalid domain address. This error message is issued if the domain address given in the EHLO command does not have the correct syntax. 501 HELO Invalid domain address. This error message is issued if the domain address given 530 smtp authentication is required hmailserver in the HELOcommand does not have the correct syntax. 502 TURNdisallowed If a SMTPclient tries to use the TURNcommand hMailServer responds with this error code. hMailServer does not include support for the TURNverb. 502 Unimplemented command If aSMTPclient tries to use a command which hMailServer has no implementation for, this error message is sent to the client. 502 Use HELO/EHLO first After a SMTPclient has connected to a SMTP server, the first thing it should do is to identify itself using the HELOor EHLO command. If the client does not do this, hMailServer responds with this error message. 502 VRFY disallowed If a SMTPclient tries to use the command VRFY, hMailServer responds with this error code. hMailServer does not include support for the VRFY verb. 503 Issue a reset if you want to start over When an email client delivers an email message to an email server, it starts of by telling the server the senders address. After it has done this, a transaction is started which is not finished before the entire message has been delivered to the email server.If the client wishes to abort the transaction and send another message, it should issue the RSETcommand.If a
By Anne P. Mitchell, CEO - January 25, 2010 30 Summary: Anybody who sends email has seen them, in one form or another - those hmailserver disable smtp authentication SMTP error codes, often returned in bounced email, such as "550 Requested hmailserver smtp authentication action not taken: mailbox unavailable" or "550 5 2 1 mail from refused spam site." These are often in hmailserver smtp authentication settings response to SMTP commands that have 'gone wrong' between your email server that sent the email, and the receiving email server that is unable to deliver it (or refuses to deliver it) https://www.hmailserver.com/documentation/v5.5/?page=reference_error_messages_smtp for some reason. But what exactly do they mean? And why should you care? ('SMTP' stands for Simple Mail Transfer Protocol.) First, here is a list of SMTP messages and error messages, and what each message is supposed to say and mean Follow Us!Anybody who sends email has seen them, in one form or another - those SMTP error codes, often http://www.gettingemaildelivered.com/what-those-smtp-error-codes-mean-and-why-you-should-care returned in bounced email, such as "550 Requested action not taken: mailbox unavailable" or "550 5 2 1 mail from refused spam site." These are often in response to SMTP commands that have ‘gone wrong' between your email server that sent the email, and the receiving email server that is unable to deliver it (or refuses to deliver it) for some reason. But what exactly do they mean? And why should you care? (‘SMTP' stands for Simple Mail Transfer Protocol.) First, here is a list of SMTP codes and error codes, and what each message is supposed to say and mean: 211 - A system status message. 214 - A help message for a human reader follows. 220 - SMTP Service ready. 221 - Service closing. 250 - Requested action taken and completed. 251 - The recipient is not local to the server, but the server will accept and forward the message. 252 - The recipient cannot be VRFYed, but the server accepts the message and attempts delivery. 354 - Start message input and end with .. This indicates that the server is ready to accept the
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