Want to export all mailboxes from Exchange? Or need to look up the mailbox settings from a particular user? With the cmdlet Get-Mailbox in PowerShell, we can quickly extract all information that we need from the Exchange Online server. You can find pretty much all … Read moreHow to use Get-Mailbox in PowerShell
Sharing your calendar in Outlook allows your colleagues to see your availability or even manage your calendar. To do this, we can use different Outlook calendar permissions that we can set in Outlook. Calendar permissions in Outlook determine how much details your colleagues can see … Read moreOutlook Calendar Permissions – What you need to know
Shared mailboxes in Microsoft 365 can be converted (back) to a user mailbox. This can be necessary when you need to access the mailbox directly (from an application or specific device) or accidentally convert the wrong user mailbox to a shared mailbox. Keep in mind … Read moreHow to Convert Shared Mailbox to User Mailbox
When a user leaves the organization you might want to keep the mailbox available so other users can access it. Leaving a user mailbox active requires an Exchange Online license, but when you convert the mailbox to a shared mailbox, a license is not needed. … Read moreHow to Convert User Mailbox to Shared Mailbox
In Exchange Online we can share whole mailboxes with other users. But what if you want to share only a folder? Or only the calendar in Outlook? We can set the permissions in Outlook, but as an admin, we can also use the Add and … Read moreHow to Add or Set MailboxFolderPermission with PowerShell
When mailboxes grow too large you won’t be able to receive or send mail anymore. Another common issue with large mailboxes is that Outlook will take longer to load. To solve this we can use Online Archives in Outlook. Online Archive mailboxes are available for … Read moreOutlook Online Archive for Office 365 Explained
The Set-Mailbox cmdlet in PowerShell allows us to change mailbox settings in Exchange Server and Exchange Online. We can use the cmdlet for example to change mailbox quotas, add an alias to the mailbox, set folder permissions, or even change the mailbox language. In this … Read moreSet-Mailbox – Change Mailbox settings with PowerShell
Sometimes legitimate email ends up in the junk folder after being marked as spam by Exchange Online. This is of course unwanted, so how do you whitelist a domain in Office 365? And how can we do it safely without opening the doors for phishing … Read moreHow to Whitelist a Domain in Office 365
Threat policies in Exchange Online prevent phishing emails and malware from ending up in the user’s mailbox. But sometimes legitimate emails end up in the spam folder as well. Although users can mark them as a safe sender manually in Outlook, sometimes it’s just easier … Read moreHow to Whitelist an Email Address in Office 365
DMARC is the last step in securing your Office 365 mail. Where SPF only checks against the 5321.MailFrom address does DMARC also check the 5322.From address. It also tells the receiving mail systems what to do with mail send from your domain that didn’t pass … Read moreHow to Configure Office 365 DMARC
