Office 365 now allows you to define policies limiting the maximum size of email attachments. But just how big is too big?
A recent update to Office 365 allows policies to dictate the maximum size for email email attachments. The previous maximum attachment size was 25MB; now it can be set to anywhere between 1MB and 150MB, and different policies can be applied to different groups of employees.
I'd argue very strongly that even 25MB is too big — at that point, it's much friendlier to everyone involved to send a link to a file stored in OneDrive/Dropbox/Box/your preferred online storage provider, or point them to an internal network server. What do you think?