Changing "from" in mail using applescript

Question

I am trying to send a notification email from script when it reaches a certain point.
but i would like the from address to read something like "[email protected]" instead of my email address.
here is the code I am using to send the mail
to sendTheMail(mailRecp,mailSubject,mailBody)
tell application "Mail"
set theNewMessage to mail new outgoing message with properties{subject:mailSubject,content:mailBody,visible:false}
tell theNewMessage to recipient at end of recipients with properties{address:mailRecp}
end tell
end tell
end sendTheMail
Where can I put the line to override the from address?
I can't seem to find any information on that.
Thanks,
Pendal

Answer 1

This is quite simple.
FIrst, though, you have to have an account configured in Mail with the email address you want to use - you don't have to enable Checking for that account, but it must exist. Then you can just:
to sendTheMail(mailRecp, mailSubject, mailBody)
  tell application "Mail"
    set theNewMessage to make new outgoing message with properties {subject:mailSubject, content:mailBody, visible:true}
    tell theNewMessage
      make new recipient at end of to recipients with properties {address:mailRecp}
      set sender to "[email protected]"
    end tell
  end tell
end sendTheMail