Cannot open attachment
Steps to reproduce:
I send / receive a message with a 7z attachment
Actual results:
I cannot open the attachment, I can only save it. I have changed the preferences - it does not help. Problem only with 7z extension, some files will open but most don't work, checked on other programs not only 7zip and all the time there is a problem. I need to be able to open the file without saving it. When I click on an attachment, nothing happens, no window appears to open the attachment, with other files it works, checked on different computers. When I select the button in the right corner open does not work either.
Expected results:
There should be a window to open the attachment using 7zip or some other program.
All Replies (4)
open the message source (ctrl+U)
Locate the attachment. It will appear somewhat like the PDF one below.
Content-Type: application/pdf; name="PaySlip.pdf" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="PaySlip.pdf"
Does the attachment have a Content-Type defined? What is it?
I have trawled through the registered types and I can not find one for 7z. But perhaps I gave up to fast. https://www.iana.org/assignments/media-types/media-types.xhtml
Content-Type: application/octet-stream; name="file.7z" Content-Disposition: attachment; filename="file.7z" Content-Transfer-Encoding: base64
I found message where can i open attachment and there is Content-Transfer-Encoding: base64 Content-Type: application/x-7z-compressed;
How can i fix this?
I suggest you talk to the one sending the mail and ask them to correctly encode what they send. An octet stream is basically a binary data stream which has one action. To save it and hopefully the recipient know what to do with it.