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How to Disable POP and IMAP for All Mailboxes in Office 365

First of all, why disable IMAP or POP? Two reasons: IMAP and POP are less secure mail protocols that are now around 30 years old. In our experience, IMAP and POP is seldom used for legitimate purposes. In almost every breach we’ve discovered, the attackers have used IMAP or POP protocols to download user mailboxes Read More

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Remove-InboxRules with Exchange PowerShell

Module:ExchangePowerShell Applies to: Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online This cmdlet is available in on-premises Exchange and in the cloud-based service. Some parameters and settings may be exclusive to one environment or the other. Use the Remove-InboxRule cmdlet to remove an Inbox rule. For information about the Read More

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How to Check a User’s Inbox Rules as a Global Administrator.

Please follow the below steps to see the users Inbox rules :  Open the Exchange Admin Center.  ​​ Once you’re on the Exchange Admin Center, Click on your User Profile Picture on that page which is at the top right hand side.  ​ Once you click on your Profile Picture then select the option another Read More

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How to Fix “You do not have permission to send the message on behalf of the specified user” With Full Access Permission in Exchange Server

Symptoms Consider the following scenario: You have Full Access and Send On Behalf Of permissions to a shared mailbox in an Exchange Server environment. You configure a Microsoft Outlook profile for the shared mailbox and enter your own credentials to access it. You send an email message from this Outlook profile. If you are running Read More

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How to Manage Permissions for Recipients in Exchange Server

In Exchange Server, you can use the Exchange admin center (EAC) or the Exchange Management Shell to assign permissions to a mailbox or group so that other users can access the mailbox (the Full Access permission), or send email messages that appear to come from the mailbox or group (the Send As or Send on Read More