Suddenly Microsoft have invented a problem for me (and everyone).
All e-mail I send is Digitally (S/MIME) signed. This has worked absolutely fine for almost every single recipient except for “Windows Live Mail” (the application).
But within the last few weeks Microsoft seem to have invented a problem for S/MIME e-mail sent to Office 365 recipients.
They can open the e-mail and see who sent it, the subject and the content of the message. What they are now unable to do is open any attachments (they can’t even see them) and they are also unable to Reply, Reply All or Forward the message!
They are greeted with a message box saying “Reply all is not allowed on this item” or “Reply is not allowed on this item”.
Very, very frustrating.
What is more worrying is I’m also unable to view the own attachments I’ve sent! If I log into OWA and go to sent items it has the attachment paper clip in the message list but when I click on a message the attachment isn’t visible.
Time for some testing. I created a brand new account on my Office 365 tenant and then sent it two messages. One digitally signed and the other not digitally signed.
So.. time to spend hours on the phone with Microsoft :\
Has anyone else noticed this problem?
It looks like it might have been a problem at some time in the past too but can’t have been happening recently as my contacts have been able to actually view my invoices (and pay them) until recently.