With roundcube3-stable (send an email to gmail successfull)
Sep 7 09:05:39 net1 dovecot: imap-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS
Sep 7 09:05:39 net1 dovecot: IMAP(jc2010@domain.net): Disconnected: Logged out bytes=23/398
Sep 7 09:05:39 net1 dovecot: imap-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS
Sep 7 09:05:40 net1 dovecot: IMAP(jc2010@domain.net): Disconnected: Logged out bytes=368/18164
Sep 7 09:05:40 net1 dovecot: imap-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS
Sep 7 09:05:40 net1 dovecot: IMAP(jc2010@domain.net): Disconnected: Logged out bytes=2455/18703
Sep 7 09:05:44 net1 dovecot: imap-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS
Sep 7 09:05:44 net1 dovecot: IMAP(jc2010@domain.net): Disconnected: Logged out bytes=8/331
Sep 7 09:05:44 net1 dovecot: imap-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS
Sep 7 09:05:44 net1 dovecot: IMAP(jc2010@domain.net): Disconnected: Logged out bytes=31/1836
Sep 7 09:05:56 net1 dovecot: imap-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS
Sep 7 09:05:56 net1 postfix/smtpd[7207]: connect from net1.domain.net[192.168.0.111]
Sep 7 09:05:56 net1 postfix/smtpd[7207]: setting up TLS connection from net1.domain.net[192.168.0.111]
Sep 7 09:05:56 net1 postfix/smtpd[7207]: net1.domain.net[192.168.0.111]: TLS cipher list "ALL:+RC4:@STRENGTH"
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:before/accept initialization
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 read client hello B
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 write server hello A
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 write certificate A
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 write key exchange A
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 write server done A
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 flush data
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 read client key exchange A
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 read finished A
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 write session ticket A
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 write change cipher spec A
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 write finished A
Sep 7 09:05:56 net1 postfix/smtpd[7207]: SSL_accept:SSLv3 flush data
Sep 7 09:05:56 net1 postfix/smtpd[7207]: Anonymous TLS connection established from net1.domain.net[192.168.0.111]: TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)
Sep 7 09:05:56 net1 postfix/smtpd[7207]: 6CF146E043: client=net1.domain.net[192.168.0.111], sasl_method=PLAIN, sasl_username=jc2010@domain.net
Sep 7 09:05:56 net1 postfix/cleanup[7211]: 6CF146E043: message-id=<9f068022cf61699d0c59ff3fd9a591bf@localhost>
Sep 7 09:05:56 net1 postfix/qmgr[1524]: 6CF146E043: from=, size=828, nrcpt=1 (queue active)
Sep 7 09:05:56 net1 dovecot: IMAP(jc2010@domain.net): Disconnected: Logged out bytes=605/1894
Sep 7 09:05:56 net1 postfix/smtpd[7207]: disconnect from net1.domain.net[192.168.0.111]
Sep 7 09:05:56 net1 dovecot: imap-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS
Sep 7 09:05:56 net1 dovecot: IMAP(jc2010@domain.net): Disconnected: Logged out bytes=368/18164
Sep 7 09:05:56 net1 dovecot: imap-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS
Sep 7 09:05:56 net1 dovecot: IMAP(jc2010@domain.net): Disconnected: Logged out bytes=368/18164
Sep 7 09:05:57 net1 dovecot: imap-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS
Sep 7 09:05:57 net1 dovecot: IMAP(jc2010@domain.net): Disconnected: Logged out bytes=2455/18727
Sep 7 09:05:57 net1 postfix/smtp[7272]: 6CF146E043: to=, relay=gmail-smtp-in.l.google.com[209.85.227.27]:25, delay=0.66, delays=0.01/0.02/0.3/0.33, dsn=2.0.0, status=sent (250 2.0.0 OK 1283843157 v14si8128784weq.13)
Sep 7 09:05:57 net1 postfix/qmgr[1524]: 6CF146E043: removed