[horde] Problem with attachment and NGINX.

[Tolingo Tolinga]

Hi, I'm testing new Horde 5 with nginx and php-fpm on Debian 6.
My problem is with file attachments. I cannot attach any file bigger than
1021KB.

At first thought that this is a problem with PHP limits so I set this
values:

upload_max_filesize: 200M
post_max_size: 800M

in php.ini (tested directly using "test.php"). The NGINX configuration is
the one copied from:

http://www.howtoforge.com/forums/showthread.php?t=59475

I found the 1021KB limit testing with files of different size, and is something
very strange because I've reinstalled the system several time.

Can someone figure out which other files can be affecting this limit?

Any idea will help. Thanks