Forcing Azure AD Connect Sync
KB ID 0001590 Problem If you are using Azure AD Connect, (AAD Connect) to sync your on-premise Active Directory with Azure AD (i.e. for Office 365), then there may be times when you need to manually ‘force a replication’ because by default it’s going to take 30 minutes between each normal ‘delta replication’ Solution If you are directly on the server that’s running Azure AD connect, then use the...
Azure AD Connect: Correct Or Remove Duplicate Values
KB ID 0001588 Problem I was doing some work for a School recently, their staff were already using Office 365 and their tenancy was all setup. Now they wanted to roll Office 365 out to the pupils, and sync to their on premises Active Directory. Now we could have simply excluded the staff from the Azure AD Connect Sync, but they want to manage their passwords etc. on-premises. Microsoft will tell you if you DON’T have an...
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 Note: The this won’t affect users who are subject to MFA (Multi Factor Authentication,) so this can be enabled to solve this problem. Solution One Code 80090016 On the affected...
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...
Migrating Mailboxes From On-Premises to Office 365
KB ID 0001419 Problem This post continues from Part-One where we connected both our domain, and on-premises Exchange server to Office 365. Now we will add our public domain, and migrate our mailboxes. Step 3 Adding Domains to Office 365 Before proceeding you will need administrative access to your public DNS records so you can create new records. Log into Office 365 > Admin Console. Add a domain. Enter your public domain name >...
Office 365: Migrating To Exchange Online
KB ID 0001418 Problem This is Part-One of a migration from ‘on-premise’ Microsoft Exchange, to Office 365 (Exchange Online). I’m using my spare ‘test domain’ (.co.uk). And I’m using the 5 user E3 Office 365 subscription that the good folk at Microsoft let me have, as part of my MVP benefits. Note: I’m using Exchange 2016, with a ‘full-hybrid’ migration into Office 365. Step 1:...