Sending e-mail through SMTP server using CSMTPConnection class, a freeware MFC class to support the SMTP protocol.

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VC7.1

C++

I am using this class to send an e-mail through SMTP server. I am attaching some of my application files with extension ‘.ecg’ & ‘.evr’. I am able to send this mail with attachments when sent to our organization’s e-mail ids only, but then in received mail the extension of the attached file changes to ‘.txt’.

I am getting ‘Error Code 22’ on CSMTPConnection’s SendMessage command when the mail is sent to other email ids like hotmail or yahoo or any other. The error code has description ‘The device does not recognize the command. ERROR_BAD_COMMAND’.

If anybody has any solution to this problem please help me.