Attachment with non-latin chars in name= internal error

[ncpnc]

I'm using Roundcube 0.2-beta FreeBSD port. Everything works fine but there's an annoying bug when non-latin characters are in attachment name. For example I can attach file named
aącć.jpeg but when I try to send an email I got:

[An internal error occured. Please try again. ] on top of roundcube window.

Also it's impossible to delete file once attached if it includes non-latin chars.

When I try to send file names ac.jpeg or any other without non-latin chats I have no problems.

I didn't found open ticket on this issue, should I provide more info?

I believe it's the same issue: http://www.roundcubeforum.net/general-discussion/3821-problem-forwarding-email-attachment.html

[ncpnc]

This problem is really annoying and I still didn't found solution. I've got 2 FreeBSD based servers and almost exactly the same apache 2.2 + roundcube + exim + dovecot configuration. First one server is i386 based and is sending attachements correctly, second one which is amd64 based unfotunately gives [An internal error occured. Please try again.] while using non-latin characters in attachement filename. Both have the same roundcube version from latest FreeBSD port which is 'roundcube-0.2.b2,1'. Please someone help me debug this because even with loglevel 8 roundcube logs says nothing more than:
 Sendmail error;
NULL
I

[Julius Caesar]

I'm not familiar with exim, but what does the exim-log say when you try to send an attachment with special characters in the name?

[ncpnc]

Exim log says nothing... it seems that roundcube don't even try to send those emails (and probably that's why it's INTERNAL error)

[ncpnc]

Today FreeBSD port of Roundcube was updated to 0.2 relaese. I've updated database and double checked differences in new config file. New setting:

$rcmail_config['mime_param_folding']

give me new hope. Unfortunately neither setting option 0,1 or 2 fix my problem. Attachements with non-ascii characters still making internal error while trying to send emails and nothing more in logs
How may I debug this error?

[RCK]

Hello ncpnc,

I have exactly the same problem !
I really think it's one bug in the roundcube engine.
My best suggestion to make roundcube team fix this problem is to open one new bug ticket in Trac. I have done it one time ago and they read & fix my old problem

Available Reports ? RoundCube Webmail ? Trac
(create one account there first)

[ncpnc]

OK, here's ticket:
#1485681 (Internal error while sending emails when attachment filenames contain non-ascii characters) ? RoundCube Webmail ? Trac
Please comment there if you also experience this problem.