Email mymessage.From changed after sent out

[leoliang]

hi, there

I wrote an Email program for interest. my machine is in a domain, which uses exchange 2000 to manage email system. In my code, I have the following:

oMsg.From = Trim(tbxfrom.Text)
oMsg.To = Trim(tbxto.Text)
oMsg.Subject = Trim(tbxsubject.Text)
oMsg.Body = Trim(tbxcontent.Text)
oMsg.Cc = Trim(tbxCC.Text)
oMsg.Bcc = Trim(tbxbcc.Text)


all my addresses will be right except "from" address when the email reach to the recipients, I put my personal email address there, but the "from" address is replaced by my domain company address.

how could this happen? and is there any way to avoid that?

thanks a lot