[rt-users] Problem in Attachments with special characters - RT 3.6.4

[Juan Ramón Alfageme Mata]

Usually there is no problem with attachments, for example the next attachment link is loaded correctly, we can access it from web interface without issue:

	Content-Description:	1prueba prueba.xlsx
	content-type:	application/octet-stream; name="1prueba prueba.xlsx"
	content-disposition:	attachment; filename="1prueba prueba.xlsx"
	Content-Transfer-Encoding:	base64
	Content-Length:	8643
	
	Download 1prueba prueba.xlsx [application/octet-stream 8.4k] Content-Description:	2pruebaprúeba.xls
	Message body not shown because it is too large or is not plain text.


But if attachment filename has an iso-8859-1 character in it's filename link it's not correctly generated, attachment name is defined ad untitled and cannot be loaded, also email notification send attachment with incorrect name and .DAT extension:

	Content-Description:	2pruebaprúeba.xls
	Content-Type:	name="2pruebaprúeba.xls"
	Content-Disposition:	filename="2pruebaprúeba.xls"
	Content-Transfer-Encoding:	base64
	Content-Length:	22016
	
	Download (untitled) [name="2pruebapr 21.5k] 
	Message body not shown because it is too large or is not plain text.

	Content-Description:	3prueba prúeba.xls
	Content-Type:	name="3prueba prúeba.xls"
	Content-Disposition:	filename="3prueba prúeba.xls"
	Content-Transfer-Encoding:	base64
	Content-Length:	22016
	
	Download (untitled) [name="3prueba 21.5k] 
	Message body not shown because it is too large or is not plain text.

Any idea on how to fix it?

Thanks for your support.