Hello everybody,
after a global reinstallation (hard drive dead 
), I reinstalled all my backup successfully.
Everything are ok except all mails !
It looks like an alias problem.
in /etc/postfix/main.cf, I have those lines
virtual_alias_maps = hash:/var/lib/mailman/data/virtual-mailman,ldap:/etc/postfix/ldap-aliases.cf
virtual_alias_domains =
but I don’t have any mailman folder (only mailman3)
the log of mailman 3
and the log of postfix
If anybody can help me, it’s a little bit too tricky for me and I’m quiet lost.
Thanks a lot.