DL205 User Manual, 4th Edition, Rev. D
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Chapter 5: Standard RLL Instructions
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SMTP Protocol Errors - SMTP (100-999)
Error Description
1xx Informational replies
2xx Success replies
200 (Non-standard success response)
211 System status or system help reply
214 Help message
220 <domain> Service ready. Ready to start TLS
221 <domain> Service closing transmission channel
250 Ok, queuing for node <node> started. Requested mail action okay, completed
251 Ok, no messages waiting for node <node>. User not local; will forward to <forward-path>
252
OK, pending messages for node <node> started. Cannot VRFY user (e.g., info is not local),
but will take message for this user and attempt delivery.
253 OK, messages pending messages for node <node> started
3xx (re) direction replies
354 Start mail input; end with <CRLF>.<CRLF>
355 Octet-offset is the transaction offset.
4xx client/request error replies
421 <domain> Service not available, closing transmission channel
432 A password transition is needed
450 Requested mail action not taken: mailbox unavailable. ATRN request refused.
451 Requested action aborted; local error in processing. Unable to process ATRN request now.
452 Requested action not taken: insufficient system storage
453 You have no mail
454
TLS is not available due to temporary reason. Encryption required for requested
authentication mechanism.
458 Unable to queue messages for node <node>
459 Node <node> not allowed: <reason>
5xx Server/process error replies
500 Syntax error, command unrecognized. Syntax error.
501 Syntax error in parameters or arguments
502 Command not implemented
503 Bad sequence of commands
504 Command parameter not implemented
521 <domain> does not accept mail
530
Access denied. Must issue a STARTTLS command first. Encryption required for requested
authentication mechanism.
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ECEMAIL Decimal Status Codes
SMTP Protocol Errors - SMTP (100-999)