Merci pour la réaction
Roundcube Webmail 0.8.5 et postfix mail_version = 2.7.1
/var/log/mail.log
Jun 11 09:44:25 lecames imapd: LOGIN, user=edjadjo, ip=[::ffff:196.28.245.54], port=[35145], protocol=IMAP
Jun 11 09:44:25 lecames imapd: LOGOUT, user=edjadjo, ip=[::ffff:196.28.245.54], headers=0, body=0, rcvd=123, sent=3648, time=0
Jun 11 09:44:36 lecames imapd: Connection, ip=[::ffff:196.28.245.54]
Jun 11 09:44:36 lecames imapd: LOGIN, user=cames, ip=[::ffff:196.28.245.54], port=[35146], protocol=IMAP
Jun 11 09:44:36 lecames imapd: LOGOUT, user=cames, ip=[::ffff:196.28.245.54], headers=0, body=0, rcvd=95, sent=649, time=0
Jun 11 09:45:01 lecames postfix/pickup[25817]: 593B91800C0: uid=112 from=
Jun 11 09:45:01 lecames postfix/cleanup[26197]: 593B91800C0: message-id=20140611074501.593B91800C0@www.lecames.org
Jun 11 09:45:01 lecames postfix/qmgr[25818]: 593B91800C0: from=munin@lecames.org, size=867, nrcpt=1 (queue active)
Jun 11 09:45:01 lecames postfix/local[26199]: 593B91800C0: to=root@lecames.org, orig_to=, relay=local, delay=0.02, delays=0.02/0/0/0, dsn=2.0.0, status=sent (delivered to maildir)
Jun 11 09:45:01 lecames postfix/qmgr[25818]: 593B91800C0: removed
/var/log/mail.info
Jun 11 09:45:01 lecames postfix/cleanup[26197]: 593B91800C0: message-id=20140611074501.593B91800C0@www.lecames.org
Jun 11 09:45:01 lecames postfix/qmgr[25818]: 593B91800C0: from=munin@lecames.org, size=867, nrcpt=1 (queue active)
Jun 11 09:45:01 lecames postfix/local[26199]: 593B91800C0: to=root@lecames.org, orig_to=, relay=local, delay=0.02, delays=0.02/0/0/0, dsn=2.0.0, status=sent (delivered to maildir)
Jun 11 09:45:01 lecames postfix/qmgr[25818]: 593B91800C0: removed
Jun 11 09:45:06 lecames imapd: LOGIN, user=rewnikiema, ip=[::ffff:196.28.245.54], port=[35147], protocol=IMAP
Jun 11 09:45:06 lecames imapd: LOGOUT, user=rewnikiema, ip=[::ffff:196.28.245.54], headers=0, body=0, rcvd=95, sent=650, time=0
Jun 11 09:45:25 lecames imapd: LOGIN, user=edjadjo, ip=[::ffff:196.28.245.54], port=[35151], protocol=IMAP
Jun 11 09:45:25 lecames imapd: LOGOUT, user=edjadjo, ip=[::ffff:196.28.245.54], headers=0, body=0, rcvd=123, sent=3648, time=0
Jun 11 09:45:36 lecames imapd: LOGIN, user=cames, ip=[::ffff:196.28.245.54], port=[35152], protocol=IMAP
Jun 11 09:45:36 lecames imapd: LOGOUT, user=cames, ip=[::ffff:196.28.245.54], headers=0, body=0, rcvd=95, sent=649, time=0
/var/log/mail.err ne contient rien