# FailureCode connection values

The following table shows the FailureCode connection values returned by the EmailSender ActiveX control.

Error codes | Error messages
1 (Dec) | Failed to start Winsock library.
2 (Dec) | Windows socket library version is unsupported.
3 (Dec) | Failure sending data over network.
4 (Dec) | Failure receiving data over network.
5 (Dec) | Failure connecting to remote server.
6 (Dec) | Failed to get host name by address.
7 (Dec) | Failure creating socket.
8 (Dec) | Internal socket error.
9 (Dec) | Internal socket error
10 (Dec) | Invalid body file extension or format.
11 (Dec) | Internal socket error.
12 (Dec) | Bad SMTP user account.
13 (Dec) | Internal error. Bad MD5 digest response.
14 (Dec) | Internal error. Bad server name.
15 (Dec) | Internal error. Server not responding.
16 (Dec) | Internal error. Timeout occurred while communicating to the server.
17 (Dec) | Memory allocation failure. System may be running out of memory.
18 (Dec) | Failed to retrieve system time.
19 (Dec) | Unexpected error. SMTP receive buffer found empty.
20 (Dec) | Unexpected error. SMTP send buffer found empty.
21 (Dec) | Connection to the server is closed while receiving data.
22 - 33 (Dec) | Internal SMTP error.
34 (Dec) | Authorization type not supported by the server.
35 (Dec) | Internal SMTP error.
36 (Dec) | Failure creating a thread.
37 (Dec) | Specified attachment file is either missing or not accessible.
38 (Dec) | Email TO recipient address is in invalid format.
39 (Dec) | Email CC recipient address is in invalid format.
40 (Dec) | Email BCC recipient address is in invalid format.
41 (Dec) | Specified attachment file size exceeds the value defined in the AttachmentSize registry value.
42 (Dec) | Specified Body File is either missing or not accessible.
43 (Dec) | Failure opening specified body file.
44 (Dec) | Sender email address is in invalid format.
45 (Dec) | Internal ActiveX error.
46 (Dec) | SMTP Server name is not specified.
47 (Dec) | SMTP Server port is not specified.
48 (Dec) | SMTP Server account username is not specified.
49 (Dec) | SMTP Server account password is not specified.
50 (Dec) | Email recipient address is not specified.
51 (Dec) | Email sender address is not specified.
52 (Dec) | Email queue is full. Maximum queue size limit is five emails.
53 (Dec) | An error occurred while Unicode string conversion.
54 (Dec) | SSL error occurred.
55 (Dec) | SMTP error. Service unavailable.
56 - 57 (Dec) | SMTP error. Recipient mailbox full.
58 (Dec) | SMTP error. Recipient disk full.
59 (Dec) | SMTP error. Recipient server not responding.
60 (Dec) | SMTP error. Connection dropped during transmission.
61 (Dec) | SMTP error. The maximum hop count was exceeded.
62 (Dec) | SMTP error. Outgoing message timed out.
63 (Dec) | SMTP error. Routing error.
64 (Dec) | SMTP error. Requested action not taken: mailbox unavailable.
65 (Dec) | SMTP error. Requested action aborted: local error in processing.
66 (Dec) | SMTP error. Requested action not taken: insufficient storage.
67 (Dec) | SMTP error. Syntax error, command unrecognized.
68 (Dec) | SMTP error. Syntax error in parameters or arguments.
69 (Dec) | SMTP error. Command not implemented.
70 (Dec) | SMTP error. Bad sequence of commands.
71 (Dec) | SMTP error. Command parameter not implemented.
72 - 73 (Dec) | SMTP error. Bad Email Address.
74 (Dec) | SMTP error. Recipient’ host server cannot be found.
75 (Dec) | SMTP error. Domain does not accept mail.
76 (Dec) | SMTP error. Access denied.
77 (Dec) | SMTP error. SMTP login unsuccessful: bad username or password.
78 (Dec) | SMTP error. Requested action not taken: mailbox unavailable.
79 (Dec) | SMTP error. User not local, relay denied.
80 (Dec) | SMTP error. Requested mail action aborted: exceeded storage allocation.
81 (Dec) | SMTP error. Requested action not taken: mailbox name not allowed.
82 (Dec) | SMTP error. Transaction failed.

## See also

EmailSender ActiveX control

Connections for the EmailSender ActiveX control

If failed in sending an attachment that is smaller than 10 MB