Office 365: Enable User Password Reset
KB ID 0001551 Problem If you want to give your Office 365 users the ability to change and recover their passwords this is the procedure. Solution Open the ‘Azure Active Directory’ admin console. If you didn’t already know, Azure is what’s underpinning your Office 365 subscription, Select ‘Azure Active Directory’ > Password reset. I’m enabling for everyone, you can choose...
Outlook: Something Went Wrong Error 80090016
KB ID 0001549 Problem When attempting to open Outlook you see this error; Something went wrong Your computer’s Trusted Platform Module has malfunctioned. If this error persists, contact your system administrator with this error code 80090016 Solution Note: The this won’t affect users who are subject to MFA (Multi Factor Authentication,) so this can be enabled to solve this problem. On the affected machine, run regedit and...
Office 365: Stop One User Sending Attachments
KB ID 0001544 Problem If you have one, (or more) users and you want to BLOCK those users from sending ANY email attachments, here’s how to do it; Solution Log into your Office 365 tenancy with administrative access > Admin > Admin Centers > Exchange Admin > Mail Flow > Rules > Add > Filter Message By Size. Name: Give it a sensible name. Apply This Rule If: The message size is greater than or equal to = 1.00...
Office 365: Allow Mail Relay Through Exchange Online
KB ID 0001480 Problem If you are used to running ‘on-prem’ Exchange then allowing an IP/Hostname to relay mail (sent mail through without authenticating) it’s handy for things like older multifunction scanners, or applications that need to send emails. Now you SHOULD be sending mail through Office 365 ‘authenticated’, but that’s not always possible. Solution From Office 365,Launch The Exchange admin...
Office 365: Grant a User Full Mailbox Access to all Mailboxes
KB ID 0001466 Problem Obviously there are some security concerns about having a user with full mailbox access to all mailboxes! But that aside, I was using a third party Migration tool last week, and it needed to connect to every mailbox with full access rights to perform the migration. So this is how I did it; Solution Firstly you need to connect to your Office 365 tenant with PowerShell; Connect to Office 365 Exchange PowerShell Now...
O365: Enable Application Impersonation
KB ID 0001449 Problem While using a migration tool to do some ‘on-prem’ to Office 365 migrations I had to enable ‘Application Impersonation’ for my Office 365 user. The tool didn’t explain how to do that, so I had to work it out for myself 🙁 So to make things easier for everyone else, here’s how to do it. Solution From within the Office 365 portal > Admin > Exchange. Dashboard > Permissions...