[imp] Strange problem with attachments

[cyx]

HI there

On my horde groupware server (all updates installed) I have a strange
problem with attachments.

I can attach ever file (and it gets instantly uploaded) as long as it has no
extension starting with x (e.g. xlsm, xmcd, .) ???

Another problem is, that even if the upload works, it takes sometimes
minutes to actually send the mail after clicking send. Im using the horde
default VFS ..

Any ideas ?

Thanks for help

Werner