Forum Linux.debian/ubuntu BUG relay access denied postfix

Bonjour,

Depuis deux jour LWS mon hébergeur de serveur dédié à relancé ses machine et je me confronte à relay access denied via thunderbird et même via telnet en me connectant sur postfix.

Par contre si je l'envoi via roundcube cela fonctionne

Voici mon postconf -n
append_dot_mydomain = no
biff = no
broken_sasl_auth_clients = no
config_directory = /etc/postfix
default_transport = smtp
disable_vrfy_command = yes
home_mailbox = mail/
inet_interfaces = all
mailbox_size_limit = 0
mydestination = $myhostname, localhost.$mydomain, localhost
mydomain = swgroupe.fr
myhostname = swgroupe.fr
mynetworks = 127.0.0.0/8, 192.168.1.0/24, 93.184.43.239
recipient_delimiter = +
relayhost =
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_helo_required = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
transport_maps = hash:/etc/postfix/transport
virtual_alias_maps = mysql:/etc/postfix/mysql-virtual_aliases.cf,mysql:/etc/postfix/mysql-virtual_aliases_comptes.cf
virtual_gid_maps = static:5000
virtual_mailbox_base = /home/postfix/Maildir
virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual_domaines.cf
virtual_mailbox_limit = 51200000
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual_comptes.cf
virtual_transport = virtual
virtual_uid_maps = static:5000

Et mon mail.log
Dec 8 13:54:08 vps3006 postfix/smtpd[29404]: NOQUEUE: reject: RCPT from 217.240.185.80.rev.sfr.net[80.185.240.217]: 554 5.7$
Dec 8 13:54:08 vps3006 postfix/smtpd[29404]: generic_checks: name=reject_unauth_destination status=2
Dec 8 13:54:08 vps3006 postfix/smtpd[29404]: > 217.240.185.80.rev.sfr.net[80.185.240.217]: 554 5.7.1 xyport@gmail.com: Re$
Dec 8 13:54:09 vps3006 postfix/smtpd[29404]: < 217.240.185.80.rev.sfr.net[80.185.240.217]: QUIT
Dec 8 13:54:09 vps3006 postfix/smtpd[29404]: > 217.240.185.80.rev.sfr.net[80.185.240.217]: 221 2.0.0 Bye

J'ai ajouté smtpd_relay_restrictions = dans main.cf car beaucoup de post en parle mais ça ne change rien à mon problème.

Merci pour vos futures réponses