SMTP and POP3 error codes

POP3 ERRORS

0x800420CB POP3 NO STORE - Mail cannot be stored on server

0x800CCC90 POP3 RESPONSE ERROR - Client response invalid

0x800CCC91 POP3 INVALID USERNAME - Invalid username or username not found

0x800CCC92 POP3 INVALID PASSWORD - Password not valid for account

0x800CCC93 POP3 PARSE FAILURE - Unable to interpret response

0x800CCC94 POP3 NEED STAT - STAT command required

0x800CCC95 POP3 NO MESSAGES - No messages on the server

0x800CCC96 POP3 NO MARKED MESSAGES - No messages marked for retrieval

0x800CCC97 POP3 POPID OUT OF RANGE - Message ID out of range

SMTP ERRORS

0x800CCC60 SMTP RESPONSE ERROR - Invalid response
0x800CCC61 SMTP UNKNOWN RESPONSE CODE - Unknown error code
0x800CCC62 SMTP 500 SYNTAX ERROR - Syntax error returned
0x800CCC63 SMTP 501 PARAM SYNTAX - Parameter syntax incorrect
0x800CCC64 SMTP 502 COMMAND NOTIMPL - Command not implemented
0x800CCC65 SMTP 503 COMMAND SEQ - Improper command sequence
0x800CCC66 SMTP 504 COMMAND PARAM NOTIMPL - Command not implemented
0x800CCC67 SMTP 421 NOT AVAILABLE - Command not available
0x800CCC68 SMTP 450 MAILBOX BUSY - Mailbox is locked and busy
0x800CCC69 SMTP 550 MAILBOX NOT FOUND - Mailbox not found
0x800CCC6A SMTP 451 ERROR PROCESSING - Error processing request
0x800CCC6B SMTP 551 USER NOT LOCAL - User mailbox is known but mailbox not on this server
0x800CCC6C SMTP 452 NO SYSTEM STORAGE - No space to store messages
0x800CCC6D SMTP 552 STORAGE OVERFLOW - Storage limit exceeded
0x800CCC6E SMTP 553 MAILBOX NAME SYNTAX - Invalid mailbox name syntax
0x800CCC6F SMTP 554 TRANSACT FAILED - Transaction failed
0x800CCC78 SMTP REJECTED SENDER - Unknown sender

• This is caused by having the incorrect e-mail address in the 'Reply To' field

0x800CCC79 SMTP REJECTED RECIPIENTS - Server rejected recipients
0x800CCC7A SMTP NO SENDER - No sender address specified
0x800CCC7B SMTP NO RECIPIENTS - No recipients specified

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