/// Prev Log DELETED

Jan 19 08:49:03 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=11892, secured, session=<kpnECVPw1QAAAAAAAAAAAAAAAAAAAAAB>

/// changed /etc/mailname to my VPS IP (84.200.206.131)

/// restarted postfix

Jan 19 08:49:03 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:49:05 zenith-gaming postfix/postfix-script[11912]: stopping the Postfix mail system
Jan 19 08:49:05 zenith-gaming postfix/master[5568]: terminating on signal 15
Jan 19 08:49:06 zenith-gaming postfix/postfix-script[12021]: starting the Postfix mail system
Jan 19 08:49:06 zenith-gaming postfix/master[12022]: daemon started -- version 2.9.6, configuration /etc/postfix
Jan 19 08:49:06 zenith-gaming postfix/qmgr[12024]: A06942868935: from=<www-data@vhost12.host-unlimited.de>, size=2506, nrcpt=1 (queue active) <-- still uses bogus hostname (vhost12.host-unlimited.de)
Jan 19 08:49:06 zenith-gaming postfix/qmgr[12024]: 261B933AE00F: from=<www-data@vhost12.host-unlimited.de>, size=2505, nrcpt=1 (queue active)
Jan 19 08:49:06 zenith-gaming postfix/qmgr[12024]: 2B12733AE011: from=<www-data@vhost12.host-unlimited.de>, size=2505, nrcpt=1 (queue active)
Jan 19 08:49:06 zenith-gaming postfix/smtp[12026]: connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused <-- still uses bogus hostname (vhost12.host-unlimited.de)
Jan 19 08:49:06 zenith-gaming postfix/smtp[12027]: connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused
Jan 19 08:49:06 zenith-gaming postfix/smtp[12028]: connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused
Jan 19 08:49:06 zenith-gaming postfix/smtp[12027]: 261B933AE00F: to=<root@vhost12.host-unlimited.de>, orig_to=<root>, relay=none, delay=12544, delays=12544/0/0.01/0, dsn=4.4.1, status=deferred (connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused)
Jan 19 08:49:06 zenith-gaming postfix/smtp[12028]: 2B12733AE011: to=<root@vhost12.host-unlimited.de>, orig_to=<root>, relay=none, delay=11344, delays=11344/0.01/0.01/0, dsn=4.4.1, status=deferred (connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused)
Jan 19 08:49:06 zenith-gaming postfix/smtp[12026]: A06942868935: to=<root@vhost12.host-unlimited.de>, orig_to=<root>, relay=none, delay=544, delays=544/0.01/0.01/0, dsn=4.4.1, status=deferred (connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused)
Jan 19 08:49:29 zenith-gaming postfix/postfix-script[12694]: refreshing the Postfix mail system

/// reloaded conf in case the restart didn't overtake the change of the /etc/mailname

Jan 19 08:49:29 zenith-gaming postfix/master[12022]: reload -- version 2.9.6, configuration /etc/postfix
Jan 19 08:49:29 zenith-gaming postfix/qmgr[12699]: 0DA082868934: from=<www-data@vhost12.host-unlimited.de>, size=2506, nrcpt=1 (queue active) <-- still uses bogus hostname (vhost12.host-unlimited.de)
Jan 19 08:49:29 zenith-gaming postfix/qmgr[12699]: 83464286892E: from=<www-data@vhost12.host-unlimited.de>, size=2504, nrcpt=1 (queue active)
Jan 19 08:49:29 zenith-gaming postfix/qmgr[12699]: 748372868932: from=<www-data@vhost12.host-unlimited.de>, size=2506, nrcpt=1 (queue active)
Jan 19 08:49:29 zenith-gaming postfix/smtp[12702]: connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused <-- still uses bogus hostname (vhost12.host-unlimited.de)
Jan 19 08:49:29 zenith-gaming postfix/smtp[12703]: connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused
Jan 19 08:49:29 zenith-gaming postfix/smtp[12701]: connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused
Jan 19 08:49:29 zenith-gaming postfix/smtp[12702]: 83464286892E: to=<root@vhost12.host-unlimited.de>, orig_to=<root>, relay=none, delay=4768, delays=4768/0/0.01/0, dsn=4.4.1, status=deferred (connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused)
Jan 19 08:49:29 zenith-gaming postfix/smtp[12703]: 748372868932: to=<root@vhost12.host-unlimited.de>, orig_to=<root>, relay=none, delay=2368, delays=2368/0.01/0.01/0, dsn=4.4.1, status=deferred (connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused)
Jan 19 08:49:30 zenith-gaming postfix/smtp[12701]: 0DA082868934: to=<root@vhost12.host-unlimited.de>, orig_to=<root>, relay=none, delay=1168, delays=1168/0.01/0.03/0, dsn=4.4.1, status=deferred (connect to vhost12.host-unlimited.de[84.200.206.131]:25: Connection refused)
Jan 19 08:49:39 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=12954, secured, session=<4CfkC1PwGQAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:49:39 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:49:40 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=12956, secured, session=<XyrwC1PwGgAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:49:40 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=303 out=1741
Jan 19 08:49:40 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=12958, secured, session=<sPj4C1PwGwAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:49:40 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:49:42 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=12960, secured, session=<fDYQDFPwKgAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:49:42 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=32 out=396
Jan 19 08:49:42 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=12962, secured, session=<LA8TDFPwMQAAAAAAAAAAAAAAAAAAAAAB>

/// changed the postfix config file manually to my domain and reload the conf

Jan 19 08:49:42 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=44 out=407
Jan 19 08:50:01 zenith-gaming postfix/smtpd[12966]: connect from localhost.localdomain[127.0.0.1]
Jan 19 08:50:01 zenith-gaming postfix/trivial-rewrite[12700]: warning: do not list domain zenith-gaming.eu in BOTH mydestination and virtual_alias_domains <-- what else?
Jan 19 08:50:01 zenith-gaming postfix/smtpd[12966]: 748FF2868936: client=localhost.localdomain[127.0.0.1], sasl_method=LOGIN, sasl_username=zenith-gaming
Jan 19 08:50:01 zenith-gaming postfix/cleanup[12988]: 748FF2868936: message-id=<69936a335a027dfdea0b36b7a3f5360c@zenith-gaming.eu>
Jan 19 08:50:01 zenith-gaming postfix/qmgr[12699]: 748FF2868936: from=<zenith-gaming@zenith-gaming.eu>, size=614, nrcpt=1 (queue active)

>>> FROM HERE

Jan 19 08:50:01 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13024, secured, session=<sxo5DVPwZAAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:50:01 zenith-gaming postfix/error[13014]: 748FF2868936: to=<zenith-gaming@84.200.206.135>, orig_to=<zenith-gaming@zenith-gaming.eu>, relay=none, delay=0.29, delays=0.16/0/0/0.12, dsn=5.1.3, status=bounced (bad address syntax)
Jan 19 08:50:01 zenith-gaming postfix/cleanup[12988]: BA150286893B: message-id=<20140119135001.BA150286893B@zenith-gaming.eu>
Jan 19 08:50:01 zenith-gaming postfix/pickup[12698]: D1E2B286893C: uid=33 from=<www-data>
Jan 19 08:50:01 zenith-gaming postfix/cleanup[13036]: D1E2B286893C: message-id=<20140119135001.D1E2B286893C@zenith-gaming.eu>
Jan 19 08:50:01 zenith-gaming postfix/bounce[13018]: 748FF2868936: sender non-delivery notification: BA150286893B
Jan 19 08:50:02 zenith-gaming postfix/qmgr[12699]: D1E2B286893C: from=<www-data@84.200.206.135>, size=2484, nrcpt=1 (queue active)
Jan 19 08:50:02 zenith-gaming postfix/qmgr[12699]: 748FF2868936: removed
Jan 19 08:50:02 zenith-gaming postfix/qmgr[12699]: BA150286893B: from=<>, size=2508, nrcpt=1 (queue active)
Jan 19 08:50:02 zenith-gaming postfix/error[13037]: BA150286893B: to=<zenith-gaming@84.200.206.135>, orig_to=<zenith-gaming@zenith-gaming.eu>, relay=none, delay=0.35, delays=0.3/0/0/0.05, dsn=5.1.3, status=bounced (bad address syntax)
Jan 19 08:50:02 zenith-gaming postfix/qmgr[12699]: BA150286893B: removed
Jan 19 08:50:02 zenith-gaming postfix/smtpd[12966]: disconnect from localhost.localdomain[127.0.0.1]
Jan 19 08:50:02 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=493 out=517
Jan 19 08:50:02 zenith-gaming postfix/error[13014]: D1E2B286893C: to=<root@84.200.206.135>, orig_to=<root>, relay=none, delay=0.49, delays=0.3/0.08/0/0.1, dsn=5.1.3, status=bounced (bad address syntax)
Jan 19 08:50:02 zenith-gaming postfix/cleanup[12988]: 27AE52868939: message-id=<20140119135002.27AE52868939@zenith-gaming.eu>
Jan 19 08:50:02 zenith-gaming postfix/bounce[13038]: D1E2B286893C: sender non-delivery notification: 27AE52868939
Jan 19 08:50:02 zenith-gaming postfix/qmgr[12699]: 27AE52868939: from=<>, size=4283, nrcpt=1 (queue active)
Jan 19 08:50:02 zenith-gaming postfix/qmgr[12699]: D1E2B286893C: removed
Jan 19 08:50:02 zenith-gaming postfix/error[13037]: 27AE52868939: to=<www-data@84.200.206.135>, relay=none, delay=0.21, delays=0.12/0/0/0.09, dsn=5.1.3, status=bounced (bad address syntax)
Jan 19 08:50:02 zenith-gaming postfix/qmgr[12699]: 27AE52868939: removed
Jan 19 08:50:02 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13040, secured, session=<KoBLDVPwbAAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:50:02 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=44 out=407
Jan 19 08:50:03 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13043, secured, session=<YAlbDVPwbQAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:50:03 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:50:04 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13047, secured, session=<62ZqDVPwbgAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:50:04 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=82 out=475
Jan 19 08:50:05 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13049, secured, session=<ZpNtDVPwbwAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:50:05 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=303 out=2169
Jan 19 08:50:05 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13051, secured, session=<01x0DVPwcgAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:50:05 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:51:03 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13117, secured, session=<r6LuEFPw5wAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:51:03 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:51:38 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13132, secured, session=<Nb37ElPwIwAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:51:38 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=303 out=2161
Jan 19 08:51:39 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13134, secured, session=<fT4JE1PwJAAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:51:39 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:51:39 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13136, secured, session=<Z7oPE1PwKQAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:51:39 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=303 out=2161
Jan 19 08:51:41 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13138, secured, session=<3FovE1PwLQAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:51:41 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:51:42 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13140, secured, session=<l8k4E1PwLgAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:51:42 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=32 out=396
Jan 19 08:51:42 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13142, secured, session=<tgQ8E1PwLwAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:51:42 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=44 out=407
Jan 19 08:51:57 zenith-gaming postfix/smtpd[13146]: connect from localhost.localdomain[127.0.0.1]
Jan 19 08:51:57 zenith-gaming postfix/trivial-rewrite[12700]: warning: do not list domain zenith-gaming.eu in BOTH mydestination and virtual_alias_domains
Jan 19 08:51:57 zenith-gaming postfix/smtpd[13146]: BCDB82868936: client=localhost.localdomain[127.0.0.1], sasl_method=LOGIN, sasl_username=zenith-gaming
Jan 19 08:51:57 zenith-gaming postfix/cleanup[13148]: BCDB82868936: message-id=<95855111f440e702bb1e0c2232599bd7@zenith-gaming.eu>
Jan 19 08:51:58 zenith-gaming postfix/qmgr[12699]: BCDB82868936: from=<zenith-gaming@zenith-gaming.eu>, size=620, nrcpt=1 (queue active)
Jan 19 08:51:58 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13152, secured, session=<wLwoFFPwSAAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:51:58 zenith-gaming postfix/error[13149]: BCDB82868936: to=<zenith-gaming@84.200.206.135>, orig_to=<zenith-gaming@zenith-gaming.eu>, relay=none, delay=0.37, delays=0.23/0/0/0.13, dsn=5.1.3, status=bounced (bad address syntax)
Jan 19 08:51:58 zenith-gaming postfix/cleanup[13148]: 21B0D286893A: message-id=<20140119135158.21B0D286893A@zenith-gaming.eu>
Jan 19 08:51:58 zenith-gaming postfix/bounce[13151]: BCDB82868936: sender non-delivery notification: 21B0D286893A
Jan 19 08:51:58 zenith-gaming postfix/qmgr[12699]: 21B0D286893A: from=<>, size=2514, nrcpt=1 (queue active)
Jan 19 08:51:58 zenith-gaming postfix/qmgr[12699]: BCDB82868936: removed
Jan 19 08:51:58 zenith-gaming postfix/smtpd[13146]: disconnect from localhost.localdomain[127.0.0.1]
Jan 19 08:51:58 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=499 out=517
Jan 19 08:51:58 zenith-gaming postfix/error[13149]: 21B0D286893A: to=<zenith-gaming@84.200.206.135>, orig_to=<zenith-gaming@zenith-gaming.eu>, relay=none, delay=0.4, delays=0.18/0/0/0.23, dsn=5.1.3, status=bounced (bad address syntax)
Jan 19 08:51:58 zenith-gaming postfix/qmgr[12699]: 21B0D286893A: removed
Jan 19 08:51:59 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13154, secured, session=<cQc9FFPwSQAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:51:59 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=44 out=407
Jan 19 08:52:00 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13156, secured, session=<GflMFFPwUQAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:52:00 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:52:01 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13159, secured, session=<mldcFFPwUgAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:52:01 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=82 out=475
Jan 19 08:52:01 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13161, secured, session=<cQhfFFPwUwAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:52:01 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=303 out=2591
Jan 19 08:52:02 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13163, secured, session=<H0lsFFPwVAAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:52:02 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416
Jan 19 08:52:03 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13165, secured, session=<zZ94FFPwVQAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:52:03 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=303 out=2583
Jan 19 08:52:03 zenith-gaming dovecot: imap-login: Login: user=<zenith-gaming>, method=PLAIN, rip=::1, lip=::1, mpid=13167, secured, session=<ogSDFFPwVgAAAAAAAAAAAAAAAAAAAAAB>
Jan 19 08:52:03 zenith-gaming dovecot: imap(zenith-gaming): Disconnected: Logged out in=50 out=416

<<< TILL HERE

I tried to send mails using roundcube to my own adress: zenith-gaming@zenith-gaming.eu to zenith-gaming@zenith-gaming.eu...