Postfix webmail attachments won't open

[MainFrame185]

I have an issue with my Debian Postfix mail server running Roundcube for webmail. When web clients receive an attachment over 900K in size, they cannot open the email message. They get an "Internet Explorer cannot display the webpage" error if using IE, or just a blank page if using Mozilla Firefox. If they use an IMAP client like Outlook to get their email then there is no problem with the attachments.

Has anyone seen this before and or know of a fix?

[likwid]

Should be a setting in php.ini for this.

[MainFrame185]

I don't see an php.ini file, but I have /var/www/roundcube/config/db.inc.php and /var/www/roundcube/config/main.inc.php.

In the db.inc.php there is a line that reads:

// maximum length of a query in bytes
$rcmail_config['db_max_length'] = 512000;  // 500K

Is that where the limitation is set?

Any help would be greatly appreciated.

[likwid]

Your php.ini will be in your php directories, you can find it with

locate php.ini

or

find / -name php.ini

At least this is where I think this limitation is being set. That specific limitation looks like a sql query length limit.

[MainFrame185]

Ok I found the file. It is huge and difficult to parse through. Here's two interesting lines I found:

; Maximum size of POST data that PHP will accept.
post_max_size = 8M

; Maximum allowed size for uploaded files.
upload_max_filesize = 2M

But both of those values are larger than the attachment size that will work.

Any ideas? I could email you the entire file if you needed it.

[likwid]

Hm maybe it's apache? Take a quick peruse through your httpd.conf for directives that look like they might be causing it.

[MainFrame185]

httpd.conf was only there for backwards compatibility but I parsed apahe2.conf. I didn't see anything listed there for file restrictions.

[likwid]

I would try the roundcube forums.

[MainFrame185]

I think I found the solution in the roundcube forum:

http://roundcubeforum.net/forum/index.php?topic=671.0

I have changed the files he mentions in this post. Is there a way to restart roundcube without having to reboot the server?

v/r

- Bob

[WinKiller]

thnx dude, it helps me a lot and I save a time