"Eugenio Gatto (Politecnico, Torino)" <[log in to unmask]> wrote:
> The envelopes from one of our subscribers contain the following:
> From: "XXXX2" <@EPO.umc>
> Sender: [log in to unmask]
 
..
 
> I could add a second subscription (NOMAIL), but what form of ADD and SET
> should I use to preserve that unusual appearance ?
 
Even if you could, and I doubt it, it would be WRONG.  That From:
address is simply invalid, and you should be making the effort to
fix whatever braindamaged mail software is allowing it to be
generated.