Eaton i-on40H - TCP;IP Error Messages

Log Messages
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354 Start mail input, end with <CRLF>.<CRLF>
355 Octet offset is the transaction offset
421 <domain> service not available, closing transmission channel
432 A password transition is needed
450 Requested mail action not taken: mailbox unavailable
451 Requested action aborted: error in processing
452 Requested action not taken: insufficient system storage
453 No mail
454 TLS not available due to temporary reason. Encryption required for requested
authentication mechanism
455 Server unable to accommodate parameters
458 Unable to queue message for node
459 Node not allowed: <reason>
500 Syntax error, command unrecognized
501 Syntax error in parameters or arguments
502 Command not implemented
503 Bad sequence of commands
504 Command parameter not implemented
510 Check the recipient address
512 <domain> cannot be found. Unknown host
515 Destination mailbox address invalid
517 Problem with senders mail attribute, check properties
521 <domain> does not accept mail (see RFC1846)
522 Recipient has exceeded mailbox limit
523 Server limit exceeded. Message too large
530 Encryption required for authentication mechanism
531 Mail system full
533 Remote server has insufficient disk space to hold email
534 Authentication mechanism is too weak. Message too big
535 Authentication unsuccessful/Bad username or password
538 Encryption required for authentication mechanism
550 Requested action not taken: mailbox unavailable
551 User not local, please try <forward-path>
552 Requested mail action aborted: exceeded storage allocation
553 Requested action not taken: mailbox name not allowed
554 Transaction failed
555 MAIL FROM/RCPT TO parameters not recognised or not implemented
TCP/IP error messages
The following table shows the TCP/IP error messages:
1001 General Error
1002 Invalid socket descriptor
1003 Invalid parameter