In some cases, Outlook clients may stop updating the Exchange Global or Offline Address Book with the error “Outlook cannot update Global Address Book 0x80200049” or 0x80070057. You can add…
Exchange
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ExchangeMicrosoft 365PowerShell
How to Block Sender Domain or Email Address in Exchange and Microsoft 365?
February 15, 2023An email system based on on-premises Exchange Server or Exchange Online (Microsoft 365) allows an administrator to block (reject) e-mails from specific external domains or sender addresses. There are several…
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Outlook mailbox rules allow users to configure different conditions for processing incoming e-mail messages in the Inbox folder. You can use Outlook rules to move e-mails from specific senders to…
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ExchangeMicrosoft 365PowerShell
Convert a User Mailbox to a Shared in Exchange and Microsoft365
February 10, 2023Multiple users can access a shared mailbox in Exchange. Unlike a common user mailbox, a shared mailbox account is disabled in Active Directory and cannot be used for interactive sign-in.…
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Active DirectoryExchangePowerShell
Finding Duplicate E-mail (SMTP) Addresses in Exchange
January 27, 2023In this article, we will show you how to find duplicate SMTP addresses in your Exchange Server organization. If your organization has non-unique SMTP addresses, Exchange returns an error when…
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ExchangeMicrosoft 365Office 365OutlookPowerShell
Granting Send As and Send on Behalf Permissions in Exchange Server/Microsoft 365
December 21, 2022In on-premises Exchange Server and Microsoft 365 (Exchange Online), you can grant users permission to send e-mails on behalf of another user or mailbox. In this article, we will show…
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ExchangeMicrosoft 365Outlook
How to Manually Configure Exchange or Microsoft 365 Account in Outlook 365/2019/2016?
December 5, 2022Modern versions of Outlook (starting with Outlook 2016) don’t allow you to manually configure a connection to a mailbox hosted on Exchange Server or Exchange Online (Microsoft 365). Microsoft developers…
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ExchangeMicrosoft 365PowerShell
Exporting Microsoft 365 (Exchange Online) Mailbox to PST
November 23, 2022Let’s look at how to export the contents of a Microsoft 365 (Exchange Online) user’s mailbox to a PST file.
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ExchangePowerShellWindows Server 2016Windows Server 2019
How to Enable Maintenance Mode on Exchange Server?
November 16, 2022In this article, we’ll show you how to properly put an Exchange Server 2019/2016 host into maintenance mode. You must put your Database Availability Group (DAG) into maintenance mode if…
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ExchangeMicrosoft 365OutlookPowerShell
Configure Auto-Reply (Out of Office) Message in Exchange and Microsoft 365
October 20, 2022An automatic reply feature (Auto-Reply, Out of Office Message/OOF) allows an Exchange user to configure a rule in their mailbox to automatically send a specific message in reply to all…