All my bounces come to the list admin address, set in the admin webpage, in the second field of General Options. Do you have that set to something, and bounces still come to root?
- Bounces are sent to the poor postmaster instead of a -admin address. I'm not entirely certain, but I think an Errors-To: header or something like that in all Mailman messages might allow one to distribute that load somewhat.
Errors-To: is way deprecated anyhow... It was intended to supercede the envelope From address for errors, but it violated RFC1123 and was subsequently ignored by many MTAs.
Christopher Lindsey, Senior System Engineer National Center for Supercomputing Applications (NCSA)