On Mon, Sep 30, 2013 at 2:59 PM, 9A5K <9a5k at 9a5k.com> wrote: > FIELD_RCVD_RGX_CHECK=DEST->RCVD:^[0-9]$|^[0-4][0-9]$ > But that would accept zones 41-49, which do not exist. Maybe: FIELD_RCVD_RGX_CHECK=DEST->RCVD:^[0-9]$|^[0-3][0-9]|^40$ ? 73, Bob, N6TV