etc/sympa/virtual_alias

   1 /^([^@+]+)@(chatperche\.org)$/ $2-$1
   2 /^([^@+]+)@(cyclocoop\.org)$/ $2-$1
   3 /^([^@+]+)@(lesjantesdunord\.org)$/ $2-$1
   4 /^([^@+]+)@(ptitvelo\.net)$/ $2-$1
   5 /^([^@+]+)@(sympa\.etudesetchantiers\.org)$/ $2-$1