Still digging a bit ...
Nov 22 07:46:39.064 zobe.domain.tld /usr/sbin/amavisd-new[19559]: logging initialized, log level 0, syslog: amavis.mail
Nov 22 07:46:39.065 zobe.domain.tld /usr/sbin/amavisd-new[19559]: starting. /usr/sbin/amavisd-new at zobe.domain.tld amavisd-new-2.10.1 (20141025), Unicode aware, LANG="fr_FR.UTF-8"
Nov 22 07:46:39.065 zobe.domain.tld /usr/sbin/amavisd-new[19559]: perl=5.020002, user=amavis, EUID: 124 (124); group=, EGID: 132 132 (132 132)
Nov 22 07:46:39.132 zobe.domain.tld /usr/sbin/amavisd-new[19559]: INFO: no optional modules: unicore::lib::Perl::SpacePer.pl unicore::lib::Nt::De.pl Unix::Getrusage
Nov 22 07:46:39.132 zobe.domain.tld /usr/sbin/amavisd-new[19559]: SpamControl: attempting to load scanner SpamAssassin, module Amavis::SpamControl::SpamAssassin
Nov 22 07:46:39.133 zobe.domain.tld /usr/sbin/amavisd-new[19559]: SpamControl: scanner SpamAssassin, module Amavis::SpamControl::SpamAssassin
fetch_modules: error loading optional module Razor2/Client/Agent.pm:
Can't locate Getopt/Long.pm: lib/Getopt/Long.pm: Permission non accordée at /usr/share/perl5/Razor2/Client/Agent.pm line 15, <DATA> line 717.
BEGIN failed--compilation aborted at /usr/share/perl5/Razor2/Client/Agent.pm line 15, <DATA> line 717.
Compilation failed in require at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/DKIM.pm:
Can't locate Mail/DKIM.pm: lib/Mail/DKIM.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Image/Info.pm:
Can't locate Image/Info.pm: lib/Image/Info.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Image/Info/GIF.pm:
Can't locate Image/Info/GIF.pm: lib/Image/Info/GIF.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Image/Info/JPEG.pm:
Can't locate Image/Info/JPEG.pm: lib/Image/Info/JPEG.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Image/Info/PNG.pm:
Can't locate Image/Info/PNG.pm: lib/Image/Info/PNG.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Image/Info/BMP.pm:
Can't locate Image/Info/BMP.pm: lib/Image/Info/BMP.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Image/Info/TIFF.pm:
Can't locate Image/Info/TIFF.pm: lib/Image/Info/TIFF.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF.pm:
Can't locate Mail/SPF.pm: lib/Mail/SPF.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Server.pm:
Can't locate Mail/SPF/Server.pm: lib/Mail/SPF/Server.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Request.pm:
Can't locate Mail/SPF/Request.pm: lib/Mail/SPF/Request.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mech.pm:
Can't locate Mail/SPF/Mech.pm: lib/Mail/SPF/Mech.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mech/A.pm:
Can't locate Mail/SPF/Mech/A.pm: lib/Mail/SPF/Mech/A.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mech/PTR.pm:
Can't locate Mail/SPF/Mech/PTR.pm: lib/Mail/SPF/Mech/PTR.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mech/All.pm:
Can't locate Mail/SPF/Mech/All.pm: lib/Mail/SPF/Mech/All.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mech/Exists.pm:
Can't locate Mail/SPF/Mech/Exists.pm: lib/Mail/SPF/Mech/Exists.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mech/IP4.pm:
Can't locate Mail/SPF/Mech/IP4.pm: lib/Mail/SPF/Mech/IP4.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mech/IP6.pm:
Can't locate Mail/SPF/Mech/IP6.pm: lib/Mail/SPF/Mech/IP6.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mech/Include.pm:
Can't locate Mail/SPF/Mech/Include.pm: lib/Mail/SPF/Mech/Include.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mech/MX.pm:
Can't locate Mail/SPF/Mech/MX.pm: lib/Mail/SPF/Mech/MX.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mod.pm:
Can't locate Mail/SPF/Mod.pm: lib/Mail/SPF/Mod.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mod/Exp.pm:
Can't locate Mail/SPF/Mod/Exp.pm: lib/Mail/SPF/Mod/Exp.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/Mod/Redirect.pm:
Can't locate Mail/SPF/Mod/Redirect.pm: lib/Mail/SPF/Mod/Redirect.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/SenderIPAddrMech.pm:
Can't locate Mail/SPF/SenderIPAddrMech.pm: lib/Mail/SPF/SenderIPAddrMech.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/v1/Record.pm:
Can't locate Mail/SPF/v1/Record.pm: lib/Mail/SPF/v1/Record.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module Mail/SPF/v2/Record.pm:
Can't locate Mail/SPF/v2/Record.pm: lib/Mail/SPF/v2/Record.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module auto/NetAddr/IP/_compV6.al:
Can't locate auto/NetAddr/IP/_compV6.al: lib/auto/NetAddr/IP/_compV6.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module auto/NetAddr/IP/short.al:
Can't locate auto/NetAddr/IP/short.al: lib/auto/NetAddr/IP/short.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module auto/NetAddr/IP/InetBase/inet_any2n.al:
Can't locate auto/NetAddr/IP/InetBase/inet_any2n.al: lib/auto/NetAddr/IP/InetBase/inet_any2n.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module auto/NetAddr/IP/InetBase/inet_n2ad.al:
Can't locate auto/NetAddr/IP/InetBase/inet_n2ad.al: lib/auto/NetAddr/IP/InetBase/inet_n2ad.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module auto/NetAddr/IP/InetBase/inet_n2dx.al:
Can't locate auto/NetAddr/IP/InetBase/inet_n2dx.al: lib/auto/NetAddr/IP/InetBase/inet_n2dx.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module auto/NetAddr/IP/InetBase/inet_ntoa.al:
Can't locate auto/NetAddr/IP/InetBase/inet_ntoa.al: lib/auto/NetAddr/IP/InetBase/inet_ntoa.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module auto/NetAddr/IP/InetBase/ipv6_aton.al:
Can't locate auto/NetAddr/IP/InetBase/ipv6_aton.al: lib/auto/NetAddr/IP/InetBase/ipv6_aton.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module auto/NetAddr/IP/InetBase/ipv6_ntoa.al:
Can't locate auto/NetAddr/IP/InetBase/ipv6_ntoa.al: lib/auto/NetAddr/IP/InetBase/ipv6_ntoa.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
fetch_modules: error loading optional module auto/Crypt/OpenSSL/RSA/new_key_from_parameters.al:
Can't locate auto/Crypt/OpenSSL/RSA/new_key_from_parameters.al: lib/auto/Crypt/OpenSSL/RSA/new_key_from_parameters.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA > line 717.
fetch_modules: error loading optional module auto/Crypt/OpenSSL/RSA/get_key_parameters.al:
Can't locate auto/Crypt/OpenSSL/RSA/get_key_parameters.al: lib/auto/Crypt/OpenSSL/RSA/get_key_parameters.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717 .
fetch_modules: error loading optional module auto/Crypt/OpenSSL/RSA/import_random_seed.al:
Can't locate auto/Crypt/OpenSSL/RSA/import_random_seed.al: lib/auto/Crypt/OpenSSL/RSA/import_random_seed.al: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717 .
fetch_modules: error loading optional module Error.pm:
Can't locate Error.pm: lib/Error.pm: Permission non accordée at /usr/sbin/amavisd-new line 209, <DATA> line 717.
Nov 22 07:46:39.330 zobe.domain.tld /usr/sbin/amavisd-new[19559]: INFO: SA version: 3.4.0, 3.004000, no optional modules: Razor2::Client::Agent Mail::DKIM Image::Info Image::Info::GIF Ima ge::Info::JPEG Image::Info::PNG Image::Info::BMP Image::Info::TIFF Mail::SPF Mail::SPF::Server Mail::SPF::Request Mail::SPF::Mech Mail::SPF::Mech::A Mail::SPF::Mech::PTR Mail::SPF::Mech::A ll Mail::SPF::Mech::Exists Mail::SPF::Mech::IP4 Mail::SPF::Mech::IP6 Mail::SPF::Mech::Include Mail::SPF::Mech::MX Mail::SPF::Mod Mail::SPF::Mod::Exp Mail::SPF::Mod::Redirect Mail::SPF::Sen derIPAddrMech Mail::SPF::v1::Record Mail::SPF::v2::Record auto::NetAddr::IP::_compV6 auto::NetAddr::IP::short auto::NetAddr::IP::InetBase::inet_any2n auto::NetAddr::IP::InetBase::inet_n2ad auto::NetAddr::IP::InetBase::inet_n2dx auto::NetAddr::IP::InetBase::inet_ntoa auto::NetAddr::IP::InetBase::ipv6_aton auto::NetAddr::IP::InetBase::ipv6_ntoa auto::Crypt::OpenSSL::RSA::new_ key_from_parameters auto::Crypt::OpenSSL::RSA::get_key_parameters auto::Crypt::OpenSSL::RSA::import_random_seed Error
Nov 22 07:46:39.330 zobe.domain.tld /usr/sbin/amavisd-new[19559]: SpamControl: init_pre_chroot on SpamAssassin done
Nov 22 07:46:39.330 zobe.domain.tld /usr/sbin/amavisd-new[19559]: socket module IO::Socket::IP, protocol families available: INET, INET6
Nov 22 07:46:39.331 zobe.domain.tld /usr/sbin/amavisd-new[19559]: bind to /var/lib/amavis/amavisd.sock|unix, 127.0.0.1:10024/tcp, [::1]:10024/tcp, 127.0.0.1:9998/tcp, [::1]:9998/tcp
Nov 22 07:46:39.332 zobe.domain.tld /usr/sbin/amavisd-new[19559]: Net::Server: 2015/11/22-07:46:39 Amavis (type Net::Server::PreForkSimple) starting! pid(19559)
Nov 22 07:46:39.333 zobe.domain.tld /usr/sbin/amavisd-new[19559]: (!)Net::Server: 2015/11/22-07:46:39 Unable to load module for proto "Net::Server::Proto::UNIX": Can't locate Net/Server/P roto/UNIX.pm: lib/Net/Server/Proto/UNIX.pm: Permission non accordée at /usr/share/perl5/Net/Server/Proto.pm line 198, <DATA> line 717.\n\n at line 198 in file /usr/share/perl5/Net/Serv er/Proto.pm
Nov 22 07:46:39.333 zobe.domain.tld /usr/sbin/amavisd-new[19559]: Net::Server: 2015/11/22-07:46:39 Server closing!