Weird thing, makes me pull hair out in chunks.
I have a private internet mail account using POP. I use the same Outlook client to connect to a hosted Exchange email account for business. Different domains and addresses.
When I attach a file to my POP email draft it warns me that "the attachment size exceeds allowable limit".
I notice that the draft that is to be sent from my POP account also appear in OWA under drafts. Hence I figured that this has to do with the max transport settings in the hosted Exchange as my ISP for the POP account has no limits anyway.
When I try to figure out how to change the max size however I am going around in circles. I have configured Powershell but cannot find the command to do it via this. Equally the Admin console on Exchange 365 does not offer any options.
Does someone have a quick way or even a link to a step by step that helps me out here?