Outlook/Outlook Express and Vista Windows Mail Error Codes

For error codes see bottom of this page

Problems and resolution history

customer email error 11:30 AM 10/30/08
Error happened after some kind of update - don't know if it was anti virus or windows update
Error Message:

Protocol : pop 3 , server response -ERR, not implemented Port 110 secure ssl no socket error 0x800CCC90, 0x800CCC18

( See error codes from our list below)
Problem Resolved - customer had 2 email accounts with the same info so windows vista mail was trying to log on to both account using the same login information at the same time.
This was causing the error.
Solution - delete one of the accounts and recheck all settings in the account that was left.
After this the email started working again without error.



This article contains a list of possible error codes that may be returned by the Microsoft mail clients listed at the beginning of this article. The following list of error codes may be returned when a failure occurs sending and receiving mail.

The list contains the following fields:
Error Code
Error Type


General Errors

        ERROR CODE   ERROR TYPE                     DESCRIPTION
        ----------   ------------------------       ---------------------------------
        0x800CCC00   LOAD_SICILY_FAILED             Authentication did not load.
        0x800CCC01   INVALID_CERT_CN                Invalid certificate content.
        0x800CCC02   INVALID_CERT_DATE              Invalid certificate date.
        0x800CCC03   ALREADY_CONNECTED              User already connected.
        0x800CCC04   CONN
        0x800CCC05   NOT_CONNECTED                  Not connected to server.
        0x800CCC06   CONN_SEND
        0x800CCC07   WOULD_BLOCK
        0x800CCC08   INVALID_STATE
        0x800CCC09   CONN_RECV
        0x800CCC0A   INCOMPLETE                     Message download incomplete.
        0x800CCC0B   BUSY                           Server or maildrop is busy.
        0x800CCC0C   NOT_INIT
        0x800CCC0D   CANT_FIND_HOST                 Cannot locate server.
        0x800CCC0E   FAILED_TO_CONNECT              Cannot connect to server.
        0x800CCC0F   CONNECTION_DROPPED             Connection closed.
        0x800CCC10   INVALID_ADDRESS                Address not known on server.
        0x800CCC11   INVALID_ADDRESS_LIST           Mailing list not known on server.
        0x800CCC12   SOCKET_READ_ERROR              Unable to send WINSOCK request.
        0x800CCC13   SOCKET_WRITE_ERROR             Unable to read Winsock reply.
        0x800CCC14   SOCKET_INIT_ERROR              Unable to initialize Winsock.
        0x800CCC15   SOCKET_CONNECT_ERROR           Unable to open Windows Socket.
        0x800CCC16   INVALID_ACCOUNT                User account not recognized.
        0x800CCC17   USER_CANCEL                    User canceled operation.
        0x800CCC18   SICILY_LOGON_FAILED            Logon attempt failed.
        0x800CCC19   TIMEOUT
        0x800CCC1A   SECURE_CONNECT_FAILED          Unable to connect using Secure
                                                    Sockets Layer (SSL).


        ERROR CODE   ERROR TYPE                     DESCRIPTION
        ----------   ------------------------       ------------------------------------
        0x800CCC40   WINSOCK_WSASYSNOTREADY         Network subsystem is unusable.
        0x800CCC41   WINSOCK_WSAVERNOTSUPPORTED     Windows Sockets cannot support this
        0x800CCC43   WINSOCK_WSAEFAULT              Bad address.
        0x800CCC44   WINSOCK_FAILED_WSASTARTUP      Unable to load Windows Sockets.
        0x800CCC45   WINSOCK_WSAEINPROGRESS         Operation now in progress. This error
                                                    appears if a Windows Sockets API is
                                                    called while a blocking function is in

Simple Mail Transport Protocol (SMTP) Errors

        ERROR CODE   ERROR TYPE                     DESCRIPTION
        ----------   ------------------------       ---------------------------------
        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.

Post Office Protocol version 3 (POP3) Errors

        ERROR CODE   ERROR TYPE                     DESCRIPTION
        ----------   ------------------------       ------------------------------------
        0x800420CB   POP3_NO_STORE                  Mail cannot be stored on server.
        0x800CCC90   POP3_RESPONSE_ERROR            Client response invalid.
        0x800CCC91   POP3_INVALID_USER_NAME         Invalid user name or user 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 server.
        0x800CCC96   POP3_NO_MARKED_MESSAGES        No messages marked for retrieval.
        0x800CCC97   POP3_POPID_OUT_OF_RANGE        Message ID out of range.

HTTPMail Error

        ERROR CODE   ERROR TYPE                     DESCRIPTION
        ----------   ------------------------       --------------------------------
        0x800CCC31                                  Bad Request Configuration Bad or
                                                    malformed request.

Network News Transport Protocol (NNTP) Errors

        ERROR CODE   ERROR TYPE                     DESCRIPTION
        ----------   ------------------------       --------------------------------
        0x800CCCA0   NNTP_RESPONSE_ERROR            News server response error.
        0x800CCCA1   NNTP_NEWGROUPS_FAILED          Newsgroup access failed.
        0x800CCCA2   NNTP_LIST_FAILED               LIST command to server failed.
        0x800CCCA3   NNTP_LISTGROUP_FAILED          Unable to display list.
        0x800CCCA4   NNTP_GROUP_FAILED              Unable to open group.
        0x800CCCA5   NNTP_GROUP_NOTFOUND            Group not on server.
        0x800CCCA6   NNTP_ARTICLE_FAILED            Message not on server.
        0x800CCCA7   NNTP_HEAD_FAILED               Message header not found.
        0x800CCCA8   NNTP_BODY_FAILED               Message body not found.
        0x800CCCA9   NNTP_POST_FAILED               Unable to post to server.
        0x800CCCAA   NNTP_NEXT_FAILED               Unable to open next message.
        0x800CCCAB   NNTP_DATE_FAILED               Unable to display date.
        0x800CCCAC   NNTP_HEADERS_FAILED            Unable to display headers.
        0x800CCCAD   NNTP_XHDR_FAILED               Unable to display MIME headers.
        0x800CCCAE   NNTP_INVALID_USERPASS          Invalid user or password.

Remote Access Service (RAS) Errors

        ERROR CODE   ERROR TYPE                     DESCRIPTION
        ----------   ------------------------       ------------------------------
        0x800CCCC2   RAS_NOT_INSTALLED              RAS/DUN not installed.
        0x800CCCC3   RAS_PROCS_NOT_FOUND            RAS/DUN process not found.
        0x800CCCC4   RAS_ERROR                      RAS/DUN error returned.
        0x800CCCC5   RAS_INVALID_CONNECTOID         Connectoid damaged or missing.
        0x800CCCC6   RAS_GET_DIAL_PARAMS            Error getting dial settings.

Internet Message Access Protocol (IMAP) Errors

        ERROR CODE   ERROR TYPE                     DESCRIPTION
        ----------   ------------------------       -----------------------------
        0x800CCCD1   IMAP_LOGINFAILURE              Login failed.
        0x800CCCD2   IMAP_TAGGED_NO_RESPONSE        Message tagged.
        0x800CCCD3   IMAP_BAD_RESPONSE              Invalid response to request.
        0x800CCCD4   IMAP_SVR_SYNTAXERR             Syntax error.
        0x800CCCD5   IMAP_NOTIMAPSERVER             Not an IMAP server.
        0x800CCCD6   IMAP_BUFFER_OVERFLOW           Buffer limit exceeded.
        0x800CCCD7   IMAP_RECVR_ERROR               Recovery error.
        0x800CCCD8   IMAP_INCOMPLETE_LINE           Incomplete data.
        0x800CCCD9   IMAP_CONNECTION_REFUSED        Connection not allowed.
        0x800CCCDA   IMAP_UNRECOGNIZED_RESP         Unknown response.
        0x800CCCDB   IMAP_CHANGEDUID                User ID has changed.
        0x800CCCDC   IMAP_UIDORDER                  User ID command failed.
        0x800CCCDD   IMAP_UNSOLICITED_BYE           Unexpected disconnect.
        0x800CCCDE   IMAP_IMPROPER_SVRSTATE         Invalid server state.
        0x800CCCDF   IMAP_AUTH_NOT_POSSIBLE         Unable to authorize client.
        0x800CCCE0   IMAP_OUT_OF_AUTH_METHODS       No more authorization types.
Note Any of the General, POP3, SMTP, IMAP, NNTP , or HTTPMail error messages may appear for the specific reason noted, or may appear as a result of no server response.


For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
195458 (http://support.microsoft.com/kb/195458/) OLEXP: Unable to send or receive messages in Outlook Express
181429 (http://support.microsoft.com/kb/181429/) OLEXP: AOL news and e-mail servers are not compatible with Outlook Express
302339 (http://support.microsoft.com/kb/302339/) OLEXP: Error message: the connection to the server has failed...Error 0x800CCC0E
254926 (http://support.microsoft.com/kb/254926/) OLEXP: You cannot send a message with graphic attachments
236032 (http://support.microsoft.com/kb/236032/) OLEXP: Outlook Express and Outlook repeatedly prompt you for your password
298589 (http://support.microsoft.com/kb/298589/) OLEXP: You are repeatedly prompted for credentials when you log on to your mail server