Today, I helped a client migrate Exchange from 2010 to 2019. As you know, Exchange 2010 can’t migrate to 2019 directly. You need to migrate Exchange from 2010 to 2016 and then 2019.
When I tried to prepare the AD schema for installing Exchange 2016 CU23, and it happened the error message is below.
“One or more servers in the existing organization are running Exchange 2000 Server or Exchange Server 2003”.
The error is because they were not uninstalled Exchange 2000 or 2003 completed. Let’s fix it.
If your organization currently has subscriptions to Office 365 Enterprise E3 or E5, the default mailbox storage limit is supported 100GB. You can check it from the account information of outlook.
Unfortunately, there are many people noticed the default size is still showing 50GB, today, I am going to show you how to increase it to 100GB.
Microsoft released Cumulative Update 18 for Microsoft Exchange Server 2016 on September 15, 2020. This cumulative update includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues. These fixes will also be included in later cumulative updates for Exchange Server 2016. This update also resolves a vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2020-16875.
oday, a customer told me that one of users cannot success to sync emails at his phone, I tried to use Microsoft Remote Connectivity Analyzer to test Exchange ActiveSync Connectivity, it has no issues with Exchange ActiveSync Autodiscover but not Exchange ActiveSync, it failed to attempt the FolderSync command on the Exchange ActiveSync session and error message is “Exchange ActiveSync returned an HTTP 500 response (Internal Server Error).”.
Today, I am going to show you how to use SendGrid as SMTP relay at Sophos UTM firewall and help you send email out successful, the Sophos UTM firewall and exchange servers are VMs of Nested Hyper-V host at Azure, if you don’t know how to build a Nested Hyper-V host in Azure, you can reference our Building Real Word lab in Azure Volume 1 book from https://leanpub.com/buildingrealworldlabsinazurevolume1) , this is step by step to tell you how to build your own lab in Azure.
When you try to send email out from exchange server VM at Azure, you will notice it will failed send email out. Because starting on November 15, 2017, outbound email messages that are sent directly to external domains (such as outlook.com and gmail.com) from a virtual machine (VM) are made available only to certain subscription types in Microsoft Azure. Outbound SMTP connections that use TCP port 25 were blocked. (Port 25 is primarily used for unauthenticated email delivery.), so you will notice the exchange server VM won’t send email out after you configure send connector.
As we know, starting on November 15, 2017, outbound email messages that are sent directly to external domains (such as outlook.com and gmail.com) from a virtual machine (VM) are made available only to certain subscription types in Microsoft Azure. Outbound SMTP connections that use TCP port 25 were blocked. (Port 25 is primarily used for unauthenticated email delivery.), so you will notice the VM at Azure won’t send out email.
There is no more legacy public folder database, public folder mailboxes also knows as modern public folders, if you still need public folders, migrate them to Exchange 2016.
Public folder migration is a one-way process, if something goes wrong, you can roll back but any changes made since the migration will be lost.
This document serves as both a guideline for redeployment document for the Exchange Migration performed at the GDM Company. The process described mainly focuses on a typical transition of Exchange 2010 to Exchange 2016 environment, converting the Exchange 2010 server to Exchange 2016 Server MBX role. Additional role options such as the Edge Transport role, are out-of-scope within this document.