Invalid property value.
Invalid proxy request.
Invalid URL.
Item not found.
Login failure.
Mixed security.
Name not resolved.
No callback.
No context.
No direct access.
You must execute an operation before retrieving data.
No remote computer is specified.
Not a proxy.
Unable to open URL.
Operation cancelled.
Option not settable.
Out of handles.
Out of memory.
Post is non-secure.
Protocol not supported for this method.
Protocol not found.
The requested proxy server was unable to be reached.
Redirect scheme change.
Registry value not found.
Unable to complete request.
Request pending.
Attempt the operation again.
Security certificate number invalid.
Security certificate date invalid.
The certificate has been revoked.
The certificate is invalid.
Security channel error.
The requested server was unable to be connected to. This was determined by receipt of a WSAEHOSTUNREACH error from WinSock.
Shutdown.
Request timed out.
Type mismatch.
Unable to cache file.
The required proxy auto-configuration file could not be retrieved.
Unrecognized scheme.
Not a valid or supported command.
Cannot coerce type.
Would block.
Access denied.
Ambiguous recipient.
One or more recipient addresses are invalid. Make sure the addresses for the RecipAddress property are valid.
Attachment not found.
The specified attachment wasn't found, and mail wasn't sent.
Failure on opening attachment.
The attachment couldn't be located. Mail wasn't sent. Verify that the AttachmentPathName property is valid.
Failure attempting to write an attachment.