Problem with user

Hi

I've installed neomail 1.27
It's work fine, but I have one small problem

I use debian (sarge), my apache (1.x) works on www-data user
Neomail was installed ok, and work.

But... Any user, when send mail ... send from www-data@..
Mail header is OK, but mail logs monitor this.
If deliver mail is not possible, then I received this mail (return).
How I can change it? Neomail 1.25 work ok without this "feature" :)

--
I greet
Wiesiek



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