[imp] Cannot send attachment > 1Mb

[Argimiro Veiga]

Hello,

When I try to send attachment > 1 Mb, the message arrives with a file of
0kbs. I have read some messages seemed but I do not find the solucion.  

The error log:

(in the php warning fopen(/tmp/impattNgf38V) the file exists)

[07-may-2003 18:01:08] PHP Warning:  fopen(/tmp/impattNgf38V)
[http://www.php.net/function.fopen]: failed to create stream: No such file
or directory in /var/www/html/horde/imp/compose.php on line 329

[07-may-2003 18:01:08] PHP Warning:  filesize()
[http://www.php.net/function.filesize]: Stat failed for /tmp/impattNgf38V
(errno=2 - No such file or directory) in
/var/www/html/horde/imp/compose.php on line 330

[07-may-2003 18:01:08] PHP Warning:  fread(): supplied argument is not a
valid stream resource in /var/www/html/horde/imp/compose. php on line 330

[07-may-2003 18:01:08] PHP Warning:  fclose(): supplied argument is not a
valid stream resource in /var/www/html/horde/imp/compose.php on line 331

[07-may-2003 18:01:08] PHP Warning:  unlink(/tmp/impattNgf38V)
[http://www.php.net/function.unlink]: No such file or directory in
/var/www/html/horde/imp/compose.php on line 332

In the php.ini:
max_execution_time = 30
max_input_time = 60
memory_limit = 8M
post_max_size = 8M
file_uploads = On
upload_max_filesize = 8M

Greetings and thanks
Argimiro