[imp] Some IMP temp files, never delete?

[Samuel Wolf]

Hi,

see IMP save some temp files of attachments(?) in  
/tmp/.horde/imp/compose/ but some of them will
never delete.
What is the root cause of this files?

Samuel

root at mailserver:/tmp/.horde# find
.
./imp
./imp/compose
./imp/compose/53d6410f-0330-43a2-9daa-4e860a32002d
./imp/compose/53d6410f-2e88-4d76-9202-4e860a32002d
./imp/compose/53d754c0-5b04-4d70-ace6-69ef0a32002d
./imp/compose/53d3b2ae-4f20-46dc-bcd4-0d820a32002d
./imp/compose/53d7356a-6fc8-41e4-882c-24170a32002d
./imp/compose/53d6410f-1304-4d32-9c6c-4e860a32002d
./imp/compose/53d65511-1c88-4273-aaa2-0a760a32002d
./imp/compose/53d6410f-f560-42ec-ac2e-4e860a32002d
./imp/compose/53d6411a-6bbc-4984-87c8-4e860a32002d
root at mailserver:/tmp/.horde# cd imp/compose/
root at mailserver:/tmp/.horde/imp/compose# ls -la
insgesamt 5216
drwx------ 2 www-data www-data    4096 Jul 29 10:01 .
drwx------ 3 www-data www-data    4096 Jul 25 20:23 ..
-rw------- 1 www-data www-data    2832 Jul 26 15:52  
53d3b2ae-4f20-46dc-bcd4-0d820a32002d
-rw------- 1 www-data www-data  291317 Jul 28 14:24  
53d6410f-0330-43a2-9daa-4e860a32002d
-rw------- 1 www-data www-data 3318233 Jul 28 14:24  
53d6410f-1304-4d32-9c6c-4e860a32002d
-rw------- 1 www-data www-data  194576 Jul 28 14:24  
53d6410f-2e88-4d76-9202-4e860a32002d
-rw------- 1 www-data www-data 1207956 Jul 28 14:24  
53d6410f-f560-42ec-ac2e-4e860a32002d
-rw------- 1 www-data www-data   58654 Jul 28 14:24  
53d6411a-6bbc-4984-87c8-4e860a32002d
-rw------- 1 www-data www-data    1450 Jul 28 15:50  
53d65511-1c88-4273-aaa2-0a760a32002d
root at mailserver:/tmp/.horde/imp/compose#