On Thu, Jun 05, 2014 at 02:24:38PM +0200, Arnt Gulbrandsen wrote: > But ? is nasty. I have even found two domains that differ only in ?/i, so > Postfix cannot treat them as equal.
Domains passed to lookup tables and match lists need to be in a-label form. The remaining surprises with domains and case-insensitive comparisons vs. unicode will be with header/body checks, likely OK. -- Viktor.