Roundcube connects the "homePostalAddress" and "postalAddress" with street, ZIP code and location as an array.
The word array is in the folder "homePostalAddress" and "postalAddress" as an array. The allocation of the place, street and ZIP code must be done differently.
Mai 15 09:27:47 dsme01 roundcube[1578]: <vnm4pq9n> C: Add uid=erich-richard.ahrens,ou=users,dc=example,dc=com: Array
Mai 15 09:27:47 dsme01 roundcube[1578]: [homepostaladdress] => Array
Mai 15 09:28:28 dsme01 roundcube[1533]: <vnm4pq9n> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:28:28 dsme01 roundcube[1533]: [homepostaladdress] => Array
Mai 15 09:28:28 dsme01 roundcube[1533]: [0] => Array
Mai 15 09:28:28 dsme01 roundcube[1533]: <vnm4pq9n> C: Add uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:28:50 dsme01 roundcube[1531]: <vnm4pq9n> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:28:50 dsme01 roundcube[1531]: [homepostaladdress] => Array
Mai 15 09:28:50 dsme01 roundcube[1531]: [0] => Array
Mai 15 09:29:14 dsme01 roundcube[2624]: <vnm4pq9n> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:29:14 dsme01 roundcube[2624]: [homepostaladdress] => Array
Mai 15 09:29:14 dsme01 roundcube[2624]: [0] => Array
Mai 15 09:34:16 dsme01 roundcube[4290]: <dt146m3g> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:34:16 dsme01 roundcube[4290]: [homepostaladdress] => Array
Mai 15 09:34:16 dsme01 roundcube[4290]: [0] => Array
Mai 15 09:34:16 dsme01 roundcube[4290]: [1] => Array
Mai 15 09:34:16 dsme01 roundcube[4290]: [street] => Array
Mai 15 09:34:16 dsme01 roundcube[4290]: [postalcode] => Array
Mai 15 09:34:16 dsme01 roundcube[4290]: [l] => Array
Mai 15 09:34:48 dsme01 roundcube[4286]: <dt146m3g> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:34:48 dsme01 roundcube[4286]: [homepostaladdress] => Array
Mai 15 09:34:48 dsme01 roundcube[4286]: [0] => Array
Mai 15 09:34:48 dsme01 roundcube[4286]: [street] => Array
Mai 15 09:34:48 dsme01 roundcube[4286]: [postalcode] => Array
Mai 15 09:34:48 dsme01 roundcube[4286]: [l] => Array
Mai 15 09:36:07 dsme01 roundcube[4286]: <dt146m3g> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:36:07 dsme01 roundcube[4286]: [homepostaladdress] => Array
Mai 15 09:36:07 dsme01 roundcube[4286]: [0] => Array
Mai 15 09:38:31 dsme01 roundcube[5802]: <sdjs03q1> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:38:31 dsme01 roundcube[5802]: [homepostaladdress] => Array
Mai 15 09:38:31 dsme01 roundcube[5802]: [0] => Array
Mai 15 09:38:39 dsme01 roundcube[5793]: <sdjs03q1> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:38:39 dsme01 roundcube[5793]: [homepostaladdress] => Array
Mai 15 09:38:39 dsme01 roundcube[5793]: [0] => Array
Mai 15 09:38:39 dsme01 roundcube[5793]: [1] => Array
Mai 15 09:38:39 dsme01 roundcube[5793]: [street] => Array
Mai 15 09:38:39 dsme01 roundcube[5793]: [postalcode] => Array
Mai 15 09:38:39 dsme01 roundcube[5793]: [l] => Array
Mai 15 09:40:24 dsme01 roundcube[6315]: <7q77a8lu> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:40:24 dsme01 roundcube[6315]: [homepostaladdress] => Array
Mai 15 09:40:24 dsme01 roundcube[6315]: [0] => Array
Mai 15 09:40:24 dsme01 roundcube[6315]: [1] => Array
Mai 15 09:40:24 dsme01 roundcube[6315]: [street] => Array
Mai 15 09:40:24 dsme01 roundcube[6315]: [postalcode] => Array
Mai 15 09:40:24 dsme01 roundcube[6315]: [l] => Array
Mai 15 09:40:37 dsme01 roundcube[6318]: <7q77a8lu> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:40:37 dsme01 roundcube[6318]: [homepostaladdress] => Array
Mai 15 09:40:37 dsme01 roundcube[6318]: [0] => Array
Mai 15 09:42:00 dsme01 roundcube[6316]: <7q77a8lu> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:42:00 dsme01 roundcube[6316]: [homepostaladdress] => Array
Mai 15 09:42:00 dsme01 roundcube[6316]: [0] => Array
Mai 15 09:42:17 dsme01 roundcube[6315]: <7q77a8lu> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:42:17 dsme01 roundcube[6315]: [homepostaladdress] => Array
Mai 15 09:42:17 dsme01 roundcube[6315]: [0] => Array
Mai 15 09:42:17 dsme01 roundcube[6315]: [street] => Array
Mai 15 09:42:17 dsme01 roundcube[6315]: [postalcode] => Array
Mai 15 09:42:17 dsme01 roundcube[6315]: [l] => Array
Mai 15 09:42:17 dsme01 roundcube[6315]: <7q77a8lu> C: Add uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:42:17 dsme01 roundcube[6315]: [postaladdress] => Array
Mai 15 09:42:36 dsme01 roundcube[6369]: <7q77a8lu> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:42:36 dsme01 roundcube[6369]: [homepostaladdress] => Array
Mai 15 09:42:36 dsme01 roundcube[6369]: [0] => Array
Mai 15 09:42:36 dsme01 roundcube[6369]: <7q77a8lu> C: Add uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:42:36 dsme01 roundcube[6369]: [postaladdress] => Array
Mai 15 09:42:56 dsme01 roundcube[6316]: <7q77a8lu> C: Replace uid=sarah.harbich,ou=users,dc=example,dc=com: Array
Mai 15 09:42:56 dsme01 roundcube[6316]: [homepostaladdress] => Array
Mai 15 09:42:56 dsme01 roundcube[6316]: [0] => Array
Mai 15 09:42:56 dsme01 roundcube[6316]: [street] => Array
Mai 15 09:42:56 dsme01 roundcube[6316]: [postalcode] => Array
Mai 15 09:42:56 dsme01 roundcube[6316]: [l] => Array
I have set the address book to read-only. Now everything is displayed correctly.