Not possible to receive e-mails with more than 19500 characters in the message body

Hello,

my kopano installation works fine, only if i get messages longer than 19500 characters, kopano does not accept the postfix email and

"Mailbox temporarily unavailable (in reply to end of DATA command)"

appears in the postquere.

In the Kopano server log appears

"Sun Jul 15 11:47:48 2018: [warning] SQL[00000480] info: Try to reconnect
Sun Jul 15 11:47:48 2018: [error]  SQL[00000481] Failed: MySQL server has gone away, Query Size: 28757, Query: "REPLACE INTO properties (hierarchyid,tag,type,properties.val_ulong,properties.val_string,properties.val_binary,properties.val_double,properties.val_longint,properties.val_hi,properties.val_lo) VALUES(1487,34054,30,null,'ClamAV using ClamSMTP',null,null,null,null,null,null,null),(1487,34056,30,null,'\"Sun, 15 Jul 2018 11:47:41 +0200\") \"19500\" "...

In the dagent Log:

Sun Jul 15 12:04:34 2018: [error  ] [ 1182] Unable to commit message: disk error (80040116)
Sun Jul 15 12:04:34 2018: [error  ] [ 1182] Unable to deliver message to "myuser", error code: 0x80040116
Sun Jul 15 12:04:34 2018: [error  ] [ 1182] Unable to deliver all messages for server "file:///var/run/kopano/server.sock"

The mysql and the kopano server run both under debian 9.

The mysql server packages:

ii  dbconfig-mysql                    2.0.8                          all          dbconfig-common MySQL/MariaDB support
ii  default-mysql-client              1.0.2                          all          MySQL database client binaries (metapackage)
ii  libdbd-mysql-perl                 4.041-2                        amd64        Perl5 database interface to the MariaDB/MySQL database
ii  libmariadbclient18:amd64          10.1.26-0+deb9u1               amd64        MariaDB database client library
ii  libmysqlclient18:amd64            5.5.54-0+deb8u1                amd64        MySQL database client library
ii  mariadb-client-10.1               10.1.26-0+deb9u1               amd64        MariaDB database client binaries
ii  mariadb-client-core-10.1          10.1.26-0+deb9u1               amd64        MariaDB database core client binaries
ii  mariadb-common                    10.1.26-0+deb9u1               all          MariaDB common metapackage
ii  mariadb-server                    10.1.26-0+deb9u1               all          MariaDB database server (metapackage depending on the latest version)
ii  mariadb-server-10.1               10.1.26-0+deb9u1               amd64        MariaDB database server binaries
ii  mariadb-server-core-10.1          10.1.26-0+deb9u1               amd64        MariaDB database core server files
ii  mysql-common                      5.8+1.0.2                      all          MySQL database common files, e.g. /etc/mysql/my.cnf
ii  php-mysql                         1:7.0+49                       all          MySQL module for PHP [default]
ii  php5-mysql                        5.6.30+dfsg-0+deb8u1           amd64        MySQL module for php5
ii  php7.0-mysql                      7.0.30-0+deb9u1                amd64        MySQL module for PHP

I already changed the max_allowed_packet to 128M but didnt changed anything. I never had this problem with the zarafa installation.

Many thanks for any help!
macduke

@macduke which version of Kopano are you running? Did you try updating to the latest release?

Edit: to clarify this sounds like a issue in early Debian 9 builds that has long since been fixed.

@fbartels thx for your reply. The dpkg-query shows “kopano-server 8.4.90.1513-0+172.1”.

Regards Thorsten

@macduke that version is ancient. We are at 8.6.80.1248 meanwhile.

Thx a lot. I updated and now it is working !