1

Topic: Server crash for no reason...

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.0
- Deployed with iRedMail Easy or the downloadable installer? Installer
- Linux/BSD distribution name and version: Linux Ubuntu 18.04 LTS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? no
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hello.

My server was working fine until I log in and fail several time for a user account trough /mail url.

After that my server crashed. I can't get to any of the url, /ireadmin or /mail. All serves status are ok... restarted server, stop and restart service and nothing.

The mail log dont show any error trace.

BTW I have a similar mirror server, just different host name. That one is working fine.

Feb  8 00:18:19 mail postfix/submission/smtpd[4163]: warning: hostname zg-0131a-256.stretchoid.com does not resolve to address 162.243.129.77: Name or service not known
Feb  8 00:18:19 mail postfix/submission/smtpd[4163]: connect from unknown[162.243.129.77]
Feb  8 00:18:19 mail postfix/submission/smtpd[4163]: disconnect from unknown[162.243.129.77] ehlo=1 quit=1 commands=2
Feb  8 00:21:40 mail postfix/anvil[4165]: statistics: max connection rate 1/60s for (submission:162.243.129.77) at Feb  8 00:18:19
Feb  8 00:21:40 mail postfix/anvil[4165]: statistics: max connection count 1 for (submission:162.243.129.77) at Feb  8 00:18:19
Feb  8 00:21:40 mail postfix/anvil[4165]: statistics: max cache size 1 at Feb  8 00:18:19
Feb  8 01:16:18 mail postfix/postscreen[6354]: CONNECT from [51.161.13.222]:33454 to [172.26.0.21]:25
Feb  8 01:16:18 mail postfix/postscreen[6354]: PREGREET 192 after 0 from [51.161.13.222]:33454: \026\003\001\000\273\001\000\000\267\003\003;\372\342i\272Q\022\360\230!\332K1+\003j\253$\343\366\27
Feb  8 01:16:18 mail postfix/postscreen[6354]: DISCONNECT [51.161.13.222]:33454
Feb  8 01:16:18 mail postfix/postscreen[6354]: cache btree:/var/lib/postfix/postscreen_cache full cleanup: retained=8 dropped=1 entries
Feb  8 01:16:18 mail postfix/dnsblog[6356]: addr 51.161.13.222 listed by domain zen.spamhaus.org as 127.0.0.4
Feb  8 02:30:02 mail postfix/postfix-script[9148]: refreshing the Postfix mail system
Feb  8 02:30:02 mail postfix/master[3074]: reload -- version 3.3.0, configuration /etc/postfix
Feb  8 03:30:01 mail postfix/pickup[9167]: 48DyN950YMz9dBZ: uid=0 from=<root>
Feb  8 03:30:01 mail postfix/cleanup[11616]: 48DyN950YMz9dBZ: message-id=<48DyN950YMz9dBZ@mail.bajawebsolutions.com>
Feb  8 03:30:01 mail postfix/qmgr[9168]: 48DyN950YMz9dBZ: from=<root@mail.bajawebsolutions.com>, size=1278, nrcpt=1 (queue active)
Feb  8 03:30:01 mail amavis[29204]: (29204-02) NOTICE: reconnecting in response to: err=2006, HY000, DBD::mysql::st execute failed: MySQL server has gone away at (eval 108) line 173.
Feb  8 03:30:02 mail postfix/10025/smtpd[11630]: connect from mail.bajawebsolutions.com[127.0.0.1]
Feb  8 03:30:02 mail postfix/10025/smtpd[11630]: 48DyNB3l8Mz9d69: client=mail.bajawebsolutions.com[127.0.0.1]
Feb  8 03:30:02 mail postfix/cleanup[11616]: 48DyNB3l8Mz9d69: message-id=<48DyN950YMz9dBZ@mail.bajawebsolutions.com>
Feb  8 03:30:02 mail postfix/10025/smtpd[11630]: disconnect from mail.bajawebsolutions.com[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Feb  8 03:30:02 mail postfix/qmgr[9168]: 48DyNB3l8Mz9d69: from=<root@mail.bajawebsolutions.com>, size=1835, nrcpt=1 (queue active)
Feb  8 03:30:02 mail amavis[29204]: (29204-02) Passed CLEAN {RelayedInbound}, [127.0.0.1] /ESMTP <root@mail.bajawebsolutions.com> -> <root@mail.bajawebsolutions.com>, (), Message-ID: <48DyN950YMz9dBZ@mail.bajawebsolutions.com>, mail_id: BcmcJtknbxgP, b: j8hgcmYXv, Hits: 0.379, size: 1278, queued_as: 48DyNB3l8Mz9d69, Subject: "Cron <root@mail> /bin/bash /var/vmail/backup/backup_mysql.sh", From: <root@mail.bajawebsolutions.com>, helo=, Tests: [NO_DNS_FOR_FROM=0.379,NO_RELAYS=-0.001,TVD_SPACE_RATIO=0.001], autolearn=no autolearn_force=no, autolearnscore=0.38, 796 ms
Feb  8 03:30:02 mail postfix/amavis/smtp[11624]: 48DyN950YMz9dBZ: to=<root@mail.bajawebsolutions.com>, orig_to=<root>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.85, delays=0.03/0.01/0.01/0.8, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 48DyNB3l8Mz9d69)
Feb  8 03:30:02 mail postfix/qmgr[9168]: 48DyN950YMz9dBZ: removed
Feb  8 03:30:02 mail postfix/cleanup[11616]: 48DyNB3wsXz9dBZ: message-id=<48DyN950YMz9dBZ@mail.bajawebsolutions.com>
Feb  8 03:30:02 mail postfix/qmgr[9168]: 48DyNB3wsXz9dBZ: from=<root@mail.bajawebsolutions.com>, size=1991, nrcpt=1 (queue active)
Feb  8 03:30:02 mail postfix/local[11633]: 48DyNB3l8Mz9d69: to=<root@mail.bajawebsolutions.com>, relay=local, delay=0.03, delays=0.01/0.02/0/0.01, dsn=2.0.0, status=sent (forwarded as 48DyNB3wsXz9dBZ)
Feb  8 03:30:02 mail postfix/qmgr[9168]: 48DyNB3l8Mz9d69: removed
Feb  8 03:30:02 mail postfix/pipe[11634]: 48DyNB3wsXz9dBZ: to=<postmaster@bajawebsolutions.com>, orig_to=<root@mail.bajawebsolutions.com>, relay=dovecot, delay=0.07, delays=0/0.01/0/0.06, dsn=2.0.0, status=sent (delivered via dovecot service)
Feb  8 03:30:02 mail postfix/qmgr[9168]: 48DyNB3wsXz9dBZ: removed
Feb  8 04:01:01 mail postfix/pickup[9167]: 48Dz3x3fRLz9dBZ: uid=0 from=<root>
Feb  8 04:01:01 mail postfix/cleanup[12839]: 48Dz3x3fRLz9dBZ: message-id=<48Dz3x3fRLz9dBZ@mail.bajawebsolutions.com>
Feb  8 04:01:01 mail postfix/qmgr[9168]: 48Dz3x3fRLz9dBZ: from=<root@mail.bajawebsolutions.com>, size=842, nrcpt=1 (queue active)
Feb  8 04:01:01 mail amavis[29205]: (29205-02) NOTICE: reconnecting in response to: err=2006, HY000, DBD::mysql::st execute failed: MySQL server has gone away at (eval 108) line 173.
Feb  8 04:01:02 mail postfix/10025/smtpd[12853]: connect from mail.bajawebsolutions.com[127.0.0.1]
Feb  8 04:01:02 mail postfix/10025/smtpd[12853]: 48Dz3y0nWWz9d69: client=mail.bajawebsolutions.com[127.0.0.1]
Feb  8 04:01:02 mail postfix/cleanup[12839]: 48Dz3y0nWWz9d69: message-id=<48Dz3x3fRLz9dBZ@mail.bajawebsolutions.com>
Feb  8 04:01:02 mail postfix/10025/smtpd[12853]: disconnect from mail.bajawebsolutions.com[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Feb  8 04:01:02 mail postfix/qmgr[9168]: 48Dz3y0nWWz9d69: from=<root@mail.bajawebsolutions.com>, size=1399, nrcpt=1 (queue active)
Feb  8 04:01:02 mail amavis[29205]: (29205-02) Passed CLEAN {RelayedInbound}, [127.0.0.1] /ESMTP <root@mail.bajawebsolutions.com> -> <root@mail.bajawebsolutions.com>, (), Message-ID: <48Dz3x3fRLz9dBZ@mail.bajawebsolutions.com>, mail_id: FhaC6yIEYKrf, b: JW35vcuX1, Hits: 0.378, size: 842, queued_as: 48Dz3y0nWWz9d69, Subject: "Cron <root@mail> /bin/bash /var/vmail/backup/backup_sogo.sh", From: <root@mail.bajawebsolutions.com>, helo=, Tests: [NO_DNS_FOR_FROM=0.379,NO_RELAYS=-0.001], autolearn=no autolearn_force=no, autolearnscore=0.379, 580 ms
Feb  8 04:01:02 mail postfix/cleanup[12839]: 48Dz3y0w2dz9dBg: message-id=<48Dz3x3fRLz9dBZ@mail.bajawebsolutions.com>
Feb  8 04:01:02 mail postfix/amavis/smtp[12848]: 48Dz3x3fRLz9dBZ: to=<root@mail.bajawebsolutions.com>, orig_to=<root>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.63, delays=0.03/0.01/0/0.59, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 48Dz3y0nWWz9d69)
Feb  8 04:01:02 mail postfix/qmgr[9168]: 48Dz3x3fRLz9dBZ: removed
Feb  8 04:01:02 mail postfix/qmgr[9168]: 48Dz3y0w2dz9dBg: from=<root@mail.bajawebsolutions.com>, size=1555, nrcpt=1 (queue active)
Feb  8 04:01:02 mail postfix/local[12856]: 48Dz3y0nWWz9d69: to=<root@mail.bajawebsolutions.com>, relay=local, delay=0.03, delays=0.01/0.01/0/0.01, dsn=2.0.0, status=sent (forwarded as 48Dz3y0w2dz9dBg)
Feb  8 04:01:02 mail postfix/qmgr[9168]: 48Dz3y0nWWz9d69: removed
Feb  8 04:01:02 mail postfix/pipe[12857]: 48Dz3y0w2dz9dBg: to=<postmaster@bajawebsolutions.com>, orig_to=<root@mail.bajawebsolutions.com>, relay=dovecot, delay=0.08, delays=0.01/0.01/0/0.06, dsn=2.0.0, status=sent (delivered via dovecot service)
Feb  8 04:01:02 mail postfix/qmgr[9168]: 48Dz3y0w2dz9dBg: removed
Feb  8 05:12:34 mail postfix/submission/smtpd[15613]: connect from ns572014.ip-51-161-13.net[51.161.13.222]
Feb  8 05:12:35 mail postfix/submission/smtpd[15613]: lost connection after UNKNOWN from ns572014.ip-51-161-13.net[51.161.13.222]
Feb  8 05:12:35 mail postfix/submission/smtpd[15613]: disconnect from ns572014.ip-51-161-13.net[51.161.13.222] unknown=0/1 commands=0/1
Feb  8 05:15:55 mail postfix/anvil[15615]: statistics: max connection rate 1/60s for (submission:51.161.13.222) at Feb  8 05:12:34
Feb  8 05:15:55 mail postfix/anvil[15615]: statistics: max connection count 1 for (submission:51.161.13.222) at Feb  8 05:12:34
Feb  8 05:15:55 mail postfix/anvil[15615]: statistics: max cache size 1 at Feb  8 05:12:34
Feb  8 06:25:39 mail postfix/pickup[16933]: 48F2Gq0LtMz9dBZ: uid=0 from=<root>
Feb  8 06:25:39 mail postfix/cleanup[18595]: 48F2Gq0LtMz9dBZ: message-id=<48F2Gq0LtMz9dBZ@mail.bajawebsolutions.com>
Feb  8 06:25:39 mail postfix/qmgr[9168]: 48F2Gq0LtMz9dBZ: from=<root@mail.bajawebsolutions.com>, size=51635, nrcpt=1 (queue active)
Feb  8 06:25:40 mail postfix/10025/smtpd[18731]: connect from mail.bajawebsolutions.com[127.0.0.1]
Feb  8 06:25:40 mail postfix/10025/smtpd[18731]: 48F2Gr4Fmcz9d69: client=mail.bajawebsolutions.com[127.0.0.1]
Feb  8 06:25:40 mail postfix/cleanup[18595]: 48F2Gr4Fmcz9d69: message-id=<48F2Gq0LtMz9dBZ@mail.bajawebsolutions.com>
Feb  8 06:25:40 mail postfix/qmgr[9168]: 48F2Gr4Fmcz9d69: from=<root@mail.bajawebsolutions.com>, size=52555, nrcpt=1 (queue active)
Feb  8 06:25:40 mail postfix/10025/smtpd[18731]: disconnect from mail.bajawebsolutions.com[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Feb  8 06:25:40 mail amavis[29204]: (29204-03) Passed SPAM {RelayedTaggedInbound}, [127.0.0.1] /ESMTP <root@mail.bajawebsolutions.com> -> <root@mail.bajawebsolutions.com>, (), Message-ID: <48F2Gq0LtMz9dBZ@mail.bajawebsolutions.com>, mail_id: QoK6OGL4ZlIR, b: rIteT51wy, Hits: 8.403, size: 51594, queued_as: 48F2Gr4Fmcz9d69, Subject: "Logwatch for mail.bajawebsolutions.com (Linux)", From: <root@mail.bajawebsolutions.com>, helo=, Tests: [NO_DNS_FOR_FROM=0.379,NO_RELAYS=-0.001,NUMERIC_HTTP_ADDR=0.001,PDS_OTHER_BAD_TLD=1.676,URIBL_ABUSE_SURBL=1.948,URIBL_BLACK=1.7,URIBL_CSS=0.1,URIBL_CSS_A=0.1,URIBL_DBL_SPAM=2.5], autolearn=no autolearn_force=no, autolearnscore=8.404, 1572 ms
Feb  8 06:25:40 mail postfix/cleanup[18595]: 48F2Gr4gmPz9dBg: message-id=<48F2Gq0LtMz9dBZ@mail.bajawebsolutions.com>
Feb  8 06:25:40 mail postfix/qmgr[9168]: 48F2Gr4gmPz9dBg: from=<root@mail.bajawebsolutions.com>, size=52711, nrcpt=1 (queue active)
Feb  8 06:25:40 mail postfix/local[18733]: 48F2Gr4Fmcz9d69: to=<root@mail.bajawebsolutions.com>, relay=local, delay=0.08, delays=0.05/0.01/0/0.02, dsn=2.0.0, status=sent (forwarded as 48F2Gr4gmPz9dBg)
Feb  8 06:25:40 mail postfix/qmgr[9168]: 48F2Gr4Fmcz9d69: removed
Feb  8 06:25:40 mail postfix/amavis/smtp[18618]: 48F2Gq0LtMz9dBZ: to=<root@mail.bajawebsolutions.com>, orig_to=<root>, relay=127.0.0.1[127.0.0.1]:10024, delay=38, delays=36/0.01/0/1.6, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 48F2Gr4Fmcz9d69)
Feb  8 06:25:40 mail postfix/qmgr[9168]: 48F2Gq0LtMz9dBZ: removed
Feb  8 06:25:40 mail postfix/pipe[18734]: 48F2Gr4gmPz9dBg: to=<postmaster@bajawebsolutions.com>, orig_to=<root@mail.bajawebsolutions.com>, relay=dovecot, delay=0.12, delays=0.01/0.01/0/0.1, dsn=2.0.0, status=sent (delivered via dovecot service)
Feb  8 06:25:40 mail postfix/qmgr[9168]: 48F2Gr4gmPz9dBg: removed
Feb  8 06:38:28 mail amavis[19514]: starting. /usr/sbin/amavisd-new at mail.bajawebsolutions.com amavisd-new-2.11.0 (20160426), Unicode aware, LC_ALL="C", LANG="C.UTF-8"
Feb  8 06:38:29 mail amavis[19525]: Net::Server: Group Not Defined.  Defaulting to EGID '123 123'
Feb  8 06:38:29 mail amavis[19525]: Net::Server: User Not Defined.  Defaulting to EUID '117'
Feb  8 06:38:29 mail amavis[19525]: No ext program for   .F, tried: unfreeze, freeze -d, melt, fcat
Feb  8 06:38:29 mail amavis[19525]: No ext program for   .zoo, tried: zoo, unzoo
Feb  8 06:38:29 mail amavis[19525]: No decoder for       .F
Feb  8 06:38:29 mail amavis[19525]: No decoder for       .zoo
Feb  8 06:38:29 mail amavis[19525]: Using primary internal av scanner code for clamav-socket
Feb  8 06:38:29 mail amavis[19525]: Found secondary av scanner clamav-clamscan at /usr/bin/clamscan
Feb  8 07:04:43 mail postfix/postscreen[20525]: CONNECT from [192.241.235.89]:34600 to [172.26.0.21]:25
Feb  8 07:04:43 mail postfix/postscreen[20525]: PREGREET 18 after 0.18 from [192.241.235.89]:34600: EHLO zg-0131a-63\r\n
Feb  8 07:04:43 mail postfix/postscreen[20525]: DISCONNECT [192.241.235.89]:34600
Feb  8 10:34:06 mail postfix/submission/smtpd[28550]: connect from worker-02.sfj.corp.censys.io[198.108.66.32]
Feb  8 10:34:06 mail postfix/submission/smtpd[28550]: Anonymous TLS connection established from worker-02.sfj.corp.censys.io[198.108.66.32]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)
Feb  8 10:34:06 mail postfix/submission/smtpd[28550]: disconnect from worker-02.sfj.corp.censys.io[198.108.66.32] ehlo=1 starttls=1 quit=1 commands=3
Feb  8 10:37:27 mail postfix/anvil[28552]: statistics: max connection rate 1/60s for (submission:198.108.66.32) at Feb  8 10:34:06
Feb  8 10:37:27 mail postfix/anvil[28552]: statistics: max connection count 1 for (submission:198.108.66.32) at Feb  8 10:34:06
Feb  8 10:37:27 mail postfix/anvil[28552]: statistics: max cache size 1 at Feb  8 10:34:06
Feb  8 18:13:08 mail roundcube: <bvmhdua7> PHP Error: Request security check failed (GET /mail/?_task=logout&_token=QNjxugkRgSWvIKOqUeECAPeqpHj4Oohg)
Feb  8 18:13:53 mail roundcube: <j4ja34ht> IMAP Error: Login failed for contacto@charlasdecafe.com against 127.0.0.1 from 189.202.69.137. AUTHENTICATE LOGIN: A0001 NO [AUTHENTICATIONFAILED] Authentication failed. in /opt/www/roundcubemail-1.4.1/program/lib/Roundcube/rcube_imap.php on line 200 (POST /mail/?_task=login&_action=login)
Feb  8 18:14:54 mail roundcube: <q7r0qten> IMAP Error: Login failed for contacto@hotelsantalucia.com against 127.0.0.1 from 189.202.69.137. AUTHENTICATE LOGIN: A0001 NO [AUTHENTICATIONFAILED] Authentication failed. in /opt/www/roundcubemail-1.4.1/program/lib/Roundcube/rcube_imap.php on line 200 (POST /mail/?_task=login&_action=login)
Feb  8 18:15:04 mail roundcube: <q7r0qten> IMAP Error: Login failed for contacto@hotelsantalucia.com against 127.0.0.1 from 189.202.69.137. AUTHENTICATE LOGIN: A0001 NO [AUTHENTICATIONFAILED] Authentication failed. in /opt/www/roundcubemail-1.4.1/program/lib/Roundcube/rcube_imap.php on line 200 (POST /mail/?_task=login&_action=login)
Feb  8 18:15:23 mail roundcube: <q7r0qten> IMAP Error: Login failed for contacto@hotelsantalucia.com against 127.0.0.1 from 189.202.69.137. AUTHENTICATE LOGIN: A0001 NO [AUTHENTICATIONFAILED] Authentication failed. in /opt/www/roundcubemail-1.4.1/program/lib/Roundcube/rcube_imap.php on line 200 (POST /mail/?_task=login&_action=login)
Feb  8 18:48:29 ip-172-26-0-234 postfix/postfix-script[2831]: starting the Postfix mail system
Feb  8 18:48:29 ip-172-26-0-234 postfix/master[2836]: daemon started -- version 3.3.0, configuration /etc/postfix
Feb  8 18:48:29 ip-172-26-0-234 amavis[1425]: starting. /usr/sbin/amavisd-new at mail.bajawebsolutions.com amavisd-new-2.11.0 (20160426), Unicode aware, LC_ALL="C", LANG="C.UTF-8"
Feb  8 18:48:34 ip-172-26-0-234 amavis[2919]: Net::Server: Group Not Defined.  Defaulting to EGID '123 123'
Feb  8 18:48:34 ip-172-26-0-234 amavis[2919]: Net::Server: User Not Defined.  Defaulting to EUID '117'
Feb  8 18:48:34 ip-172-26-0-234 amavis[2919]: No ext program for   .F, tried: unfreeze, freeze -d, melt, fcat
Feb  8 18:48:34 ip-172-26-0-234 amavis[2919]: No ext program for   .zoo, tried: zoo, unzoo
Feb  8 18:48:34 ip-172-26-0-234 amavis[2919]: No decoder for       .F
Feb  8 18:48:34 ip-172-26-0-234 amavis[2919]: No decoder for       .zoo
Feb  8 18:48:34 ip-172-26-0-234 amavis[2919]: Using primary internal av scanner code for clamav-socket
Feb  8 18:48:34 ip-172-26-0-234 amavis[2919]: Found secondary av scanner clamav-clamscan at /usr/bin/clamscan
Feb  8 18:49:01 ip-172-26-0-234 amavis[3179]: (!)policy protocol: INVALID AM.PDP ATTRIBUTE LINE: POST / HTTP/1.1\r\n
Feb  8 18:49:01 ip-172-26-0-234 amavis[3179]: (!!)policy_server FAILED: Missing 'request' field at (eval 105) line 197, <GEN34> line 7.
Feb  8 18:49:02 ip-172-26-0-234 amavis[3179]: (!)policy protocol: INVALID AM.PDP ATTRIBUTE LINE: [{"version": "1.1", "params": [], "id": 0, "method": "getmempoolinfo"}, {"version": "1.1", "params": [], "id": 1, "method": "getnetworkinfo"}, {"version": "1.1", "params": [], "id": 2, "method": "getblockchaininfo"}, {"version": "1.1", "params": [], "id": 3, "method": "getmemoryinfo"}, {"version": "1.1", "params": [], "id": 4, "method": "gettxoutsetinfo"}]
Feb  8 18:54:40 ip-172-26-0-234 postfix/postfix-script[4336]: stopping the Postfix mail system
Feb  8 18:54:40 ip-172-26-0-234 postfix/master[2836]: terminating on signal 15
Feb  8 18:54:47 ip-172-26-0-234 postfix/postqueue[4342]: fatal: Queue report unavailable - mail system is down
Feb  8 18:54:57 ip-172-26-0-234 postfix/postqueue[4462]: fatal: Queue report unavailable - mail system is down
Feb  8 18:55:07 ip-172-26-0-234 postfix/postqueue[4518]: fatal: Queue report unavailable - mail system is down
Feb  8 18:55:17 ip-172-26-0-234 postfix/postqueue[4562]: fatal: Queue report unavailable - mail system is down
Feb  8 18:55:27 ip-172-26-0-234 postfix/postqueue[4605]: fatal: Queue report unavailable - mail system is down
Feb  8 18:56:02 ip-172-26-0-234 postfix/postqueue[5147]: fatal: Queue report unavailable - mail system is down
Feb  8 18:56:32 ip-172-26-0-234 postfix/postqueue[5161]: fatal: Queue report unavailable - mail system is down
Feb  8 18:56:55 ip-172-26-0-234 postfix/postfix-script[6290]: starting the Postfix mail system
Feb  8 18:56:55 ip-172-26-0-234 postfix/master[6292]: daemon started -- version 3.3.0, configuration /etc/postfix
Feb  8 18:56:57 ip-172-26-0-234 amavis[6488]: starting. /usr/sbin/amavisd-new at mail.bajawebsolutions.com amavisd-new-2.11.0 (20160426), Unicode aware, LC_ALL="C", LANG="C.UTF-8"
Feb  8 18:56:57 ip-172-26-0-234 amavis[6497]: Net::Server: Group Not Defined.  Defaulting to EGID '123 123'
Feb  8 18:56:57 ip-172-26-0-234 amavis[6497]: Net::Server: User Not Defined.  Defaulting to EUID '117'
Feb  8 18:56:57 ip-172-26-0-234 amavis[6497]: No ext program for   .F, tried: unfreeze, freeze -d, melt, fcat
Feb  8 18:56:57 ip-172-26-0-234 amavis[6497]: No ext program for   .zoo, tried: zoo, unzoo
Feb  8 18:56:57 ip-172-26-0-234 amavis[6497]: No decoder for       .F
Feb  8 18:56:57 ip-172-26-0-234 amavis[6497]: No decoder for       .zoo
Feb  8 18:56:57 ip-172-26-0-234 amavis[6497]: Using primary internal av scanner code for clamav-socket
Feb  8 18:56:57 ip-172-26-0-234 amavis[6497]: Found secondary av scanner clamav-clamscan at /usr/bin/clamscan
Feb  8 19:00:32 ip-172-26-0-234 postfix/postfix-script[6911]: refreshing the Postfix mail system
Feb  8 19:00:32 ip-172-26-0-234 postfix/master[6292]: reload -- version 3.3.0, configuration /etc/postfix
Feb  8 19:02:56 ip-172-26-0-234 postfix/postfix-script[7096]: stopping the Postfix mail system
Feb  8 19:02:56 ip-172-26-0-234 postfix/master[6292]: terminating on signal 15
Feb  8 19:02:57 ip-172-26-0-234 postfix/postqueue[7100]: fatal: Queue report unavailable - mail system is down
Feb  8 19:03:07 ip-172-26-0-234 postfix/postqueue[7110]: fatal: Queue report unavailable - mail system is down
Feb  8 19:03:12 ip-172-26-0-234 postfix/postfix-script[7948]: starting the Postfix mail system
Feb  8 19:03:12 ip-172-26-0-234 postfix/master[7950]: daemon started -- version 3.3.0, configuration /etc/postfix
Feb  8 19:04:40 ip-172-26-0-234 postfix/postfix-script[8112]: refreshing the Postfix mail system
Feb  8 19:04:40 ip-172-26-0-234 postfix/master[7950]: reload -- version 3.3.0, configuration /etc/postfix
Feb  8 19:05:44 ip-172-26-0-234 postfix/postfix-script[8178]: stopping the Postfix mail system
Feb  8 19:05:44 ip-172-26-0-234 postfix/master[7950]: terminating on signal 15
Feb  8 19:05:45 ip-172-26-0-234 postfix/postfix-script[9016]: starting the Postfix mail system
Feb  8 19:05:45 ip-172-26-0-234 postfix/master[9018]: daemon started -- version 3.3.0, configuration /etc/postfix
Feb  8 19:11:21 ip-172-26-0-234 postfix/postsuper[9379]: fatal: use of this command is reserved for the superuser

Im lost here.

Thanks for the reply.

2

Re: Server crash for no reason...

Sounds like your IP address was banned by Fail2ban, not "crash".
Download script "fail2ban_unban_ip.sh" on your server from URL below, and unban your IP address with command "bash fail2ban_unban_ip.sh <ip>", then try to login Roundcube again. Or, even simpler, stop "fail2ban" service temporarily for testing.
https://github.com/iredmail/iRedMail/tree/master/tools

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