Office 365 mscz qurantine
Some of our students have started to use musescore and are finding that when emailing .mscz files as attachments in office 365, the emails are not sent and are being quarantined.
I looked into this and it seems office 365 is detecting the attachments as jar files.
I've checked with Microsoft and when I tested changing a random file to .mscz, it sent successfully, so it is not the file extension, it's the content of the file.
has anybody experienced this?
Paul
Comments
Not that I'm aware of.
mscz is just a normal zip file, so you could have them try and rename their files to .zip (or to whatever you'd like such as .thisisactuallyandmsczfile) and then have the receiving end rename them back again.
In reply to Not that I'm aware of. mscz… by jeetee
JAR files are basically Zip files, too. Could it be the ISP or email provider that is intervening?
In reply to JAR files are basically Zip… by underquark
Hi both. Thanks for the replies. Office 365 blocks certain attachment types like .jar .reg .exe etc. What I don't understand is why it's viewing a .mscv file as a .jar file.
Microsoft's only suggest was to allow .jar files, which isn't very helpful because they are blocked by default, by Microsoft for a reason.
In reply to Hi both. Thanks for the… by Paul Hesketh
Microsoft block compressed files and archives (since often viruses hide in archives to escape proper scanning).
Since MuseScore's files unfortunately don't have any kind of file magic they can't be detected as such and will look like "normal" zip arcives. The only way to get those files through MS would be to allow zip files ...
definitely not something I would recomend.
In reply to Microsoft block compressed… by rmattes
Once again, MS ruins more lives than the combined efforts of the great dictators of the past!!
Is there an exception rule that can be written into Office 365? I'm still using Office 2007 - the one that actually worked before MS soured the milk!
In reply to Once again, MS ruins more… by Lee Batchelor
Please don't confuse everything.
MuseScore files are zipped files.
The product you use prevents usage of zipped files to protect unattentive users against virus.
It is a setting that you can change if you are ready to accept zipped files.
Really NOTHING to do with a MS-Office vs Libre Office war here.
In reply to Please don't confuse… by frfancha
Hi, I checked in 365 and we do not block zip files. We DO block .jar files and 365 is detecting compressed MuseScore files (.mscz) as a .jar file. When we email uncompressed MuseScore files (.mscx), they send with no problem.
In reply to Hi, I checked in 365 and we… by Paul Hesketh
then the question is why Office 365 missdetects .mscz as .jar
In reply to then the question is why 365… by Jojo-Schmitz
Yep. I've gone back to Microsoft with this. Trying to get past first line support is quite a painstaking process though, so I won't hold my breath.
In reply to Yep. I've gone back to… by Paul Hesketh
I've seen people on this very forum be surprised by Microsoft fixing things for MuseScore before. You never know.
In reply to Hi both. Thanks for the… by Paul Hesketh
It's so easy to fix...
CHANGE TO LIBREOFFICE!!!
Any Open Software is better than "big brother" Microsoft. Simple.
In reply to It's so easy to fix... … by jotape1960
Agreed!
Possible alternatives. Send them using a (free) online service such as dropbox/drive/wetransfer.
If less than 5 scores should be sent/shared, have them upload (privately) to musescore.com, which is covered by their free account.
I have no problem emailing .mscz files with Microsoft Office, (Outlook 2013 on Windows and Office 365 version on Android), so I'm not sure we've got to the bottom of this. Maybe it's your ISP rather than Microsoft.
Are any of your students able to send them? If so, what's their setup?
Have you tried the Windows 10 mail client?
You could test with Libre Office or OpenOffice: if the problem persists then it points to your ISP or email provider, or maybe even your antivirus.
In reply to I have no problem emailing … by yonah_ag
The problem here is not the mail client (Outlook/Windowss Mail etc.) but the Office 365 Mail server - something like my cloud version of MS Exchange. This service can be configured to block or quarantaine incomming mail with executable/zipped attachments which is what seems to happen to OP.
This is something that can be changed with appropriate configuration but, frankly, blocking such potential hazzardous content from floating in is actually a good idea (our local mail system would allow such content, but only from trusted domains (so teachers can mail them to students etc.)). For even moderatly sized schools it's a good idea to use a LMS like Moodle or ILIAS to host content.
In reply to The problem here is not the… by rmattes
My Outlook email address has no problem sending/receiving .mscz files and presumably they're also going through Microsoft's mail server – but without being flagged as hazardous, so this still seems a bit odd.
The OP could register an email address with Yahoo or Google and thereby avoid Microsoft's servers and see if the .mscz files then send.
In reply to My Outlook email address has… by yonah_ag
Thanks for all the replies. I tried sending from a gmail account and the email doesn't get through.
In 365 admin, I can see that the email is being quarantined -
'Delete message. Malware: jar File: Theme_and_Variations.mscz'
I think perhaps wetransfer or dropbox may be the way to go, as I don't want to allow zip files through. It's a pain that microsoft doesn't have the option to add custom file extensions as exceptions.
Thanks again for all the responses, very impressed by this forum.
Paul
In reply to Thanks for all the replies. … by Paul Hesketh
MuseScore files are zipped files (unless you use the text format as suggested).
So if you are not ready to open your email account to zipped files, it is quite normal that they are stopped.
In reply to MuseScore files are zipped… by frfancha
Hi, I checked in 365 and I was wrong... we do not block zip files. We DO block .jar files and 365 is detecting compressed MuseScore files (.mscz) as a .jar file. However, when we email uncompressed MuseScore files (.mscx), they send with no problem, so this is the solution for now.
Other possible workaround; if they don't need to include pictures into their documents. Have them save as mscx, which is a plain text format and thus shouldn't be hindered by e-mail attachment filtering.
In reply to Other possible workaround;… by jeetee
This works. Thanks so much!
In reply to This works. Thanks so much! by Paul Hesketh
I can confirm that this worked in my case. Thanks, I totally overlooked this option!
BTW: this just came up again in https://musescore.org/en/node/300967