Hi,

To add on

The desktop demo project does not get the error when connecting to the same MMSC server
However, when using the library as a MM7 client in a web application, the response sometimes ok, but most of the time we get below exception

02:36:39: ERROR: 68: (MM7Client) Message sending ...

After using the MM7 client (based on the sample code) to submit to a NowSMS MMSC, we got below exception randomly.
The MMS still got sent through, but we can't get the SubmitResponse because of the exception.

Exception:
"The server committed a protocol violation. Section=ResponseStatusLine ...