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Mark Gossa
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Mark Gossa

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Exchange 2013 to 2016 Migration (Part 4)
Introduction In the previous parts of this series, we’ve installed Exchange 2016,
configured certificates and virtual directory URLs and then migrated the CAS
role. The next step in the migration will be to migrate data - namely creating
mailbox database...
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Mark Gossa

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Mailbox size report in Exchange
Here’s a handly little script that you can use to get the size of your mailbox and other useful information such as the mailbox quotas. The script generates a CSV file with the columns below: Display Name Primary SMTP Organizational Unit Email Aliases Total...
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Exchange 2013, 2016 - Single name certificate
Is it possible to configure Exchange 2010, 2013 or 2016 to use a single name certificate? The answer is yes but I guess you'll want a little more information. It's possible to configure all your virtual directory URLs, Outlook Anywhere and the AutodiscoverS...
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How to install Exchange 2016
In this article, we will walk through how to install Exchange 2016. Introduction Exchange 2016 is very similar to Exchange 2013 and is often labelled as Exchange 2013 SP2. As a result, the install is almost identical and the prerequisites are the same. Prep...
In this article, we will walk through how to install Exchange 2016. Introduction Exchange 2016 is very similar to Exchange 2013 and is often labelled as Exchange 2013 SP2. As a result, the install is almost identical and the ...
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Contacts not appearing in Global Address List/convert contacts to mail contacts
If you are finding that some contacts are not appearing in the GAL then confirm that they are mail contacts and not created using AD. Contacts created using AD Users and Computers are not recognized by Exchange.  To work out if your contacts have been creat...
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SPF PTR Mechanism
The ptr mechanism is at commonly seen in SPF records and there is a reason for this. According to RFC 7208 section 5.5 , it 'SHOULD NOT' be used. According to RFC 2119 , SHOULD NOT means NOT RECOMMENDED which means that there may still be valid reasons and ...
The ptr mechanism is at commonly seen in SPF records and there is a reason for this. According to RFC 7208 section 5.5, it 'SHOULD NOT' be used. According to RFC 2119, SHOULD NOT means NOT RECOMMENDED which means that there m...
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**
In this post, I’ll demonstrate how you can use the Get-Mailbox cmdlet with the Get-MessageTrackingLog cmdlet to get the last email received for a mailbox or many mailboxes. How it works You can skip this section and scroll down to the instructions section b...
In this post, I’ll demonstrate how you can use the Get-Mailbox cmdlet with the Get-MessageTrackingLog cmdlet to get the last email received for a mailbox or many mailboxes. How it works You can skip this section and scroll do...
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Outlook 2013 repeated reconnect attempts with Exchange 2013 or Exchange 2016 MAPI/HTTP
There are reports of performance issues and repeated reconnects when using Outlook 2013 and MAPI over HTTP in Exchange 2013. The problem is that the header that the server uses to specify the connection keep-alive period as the server is processing the requ...
There are reports of performance issues and repeated reconnects when using Outlook 2013 and MAPI over HTTP in Exchange 2013. The problem is that the header that the server uses to specify the connection keep-alive period as t...
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Exchange 2013 install - the LDAP server is unavailable
If you are seeing this error, check that you meet the Active Directory requirements and go through the checks below: Check that your Exchange server is joined to the domain Check that there are no firewalls between the Exchange server and the domain control...
If you are seeing this error, check that you meet the Active Directory requirements and go through the checks below: Check that your Exchange server is joined to the domain Check that there are no firewalls between the Excha...
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Exchange 2016 sizing guidance and system requirements
Exchange 2016 requires essentially the same RAM/CPU/IOPs per mailbox as Exchange 2013 but requires just a little more compute requirements.  Exchange 2016 only has a single role (MBX role) so the Exchange 2013 guidance needs to be followed for multi role se...
Exchange 2016 requires essentially the same RAM/CPU/IOPs per mailbox as Exchange 2013 but requires just a little more compute requirements. Exchange 2016 only has a single role (MBX role) so the Exchange 2013 guidance need...
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Outlook - Test Autodiscover
Misconfigured virtual directory URLs and certificates can cause problems with Outlook. Common issues include password prompts and certificate warnings. Outlook uses autodiscover to configure itself with the correct hostname for Outlook Anywhere, the correct...
Misconfigured virtual directory URLs and certificates can cause problems with Outlook. Common issues include password prompts and certificate warnings. Outlook uses autodiscover to configure itself with the correct hostname...
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Exchange 2010, 2013, 2016 - Set Virtual Directory
When setting up Exchange 2010, 2013, 2016 servers, you will need to configure the virtual directory URLs and Outlook Anywhere hostnames so that the clients receive these correct URLs from autodiscover.  We need to set the URLs and hostnames for the below: O...
When setting up Exchange 2010, 2013, 2016 servers, you will need to configure the virtual directory URLs and Outlook Anywhere hostnames so that the clients receive these correct URLs from autodiscover. We need to set the U...
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Mark Gossa
Introduction
Microsoft/VMware Senior Technical Consultant, London, UK
MCSA: Windows Server 2003
MCSE: Windows Server 2003
MCITP: Server Administrator (Windows Server 2008 R2)
MCITP: Enterprise Administrator (Windows Server 2008 R2)
MCTS: Microsoft Office SharePoint Server 2007
MCTS: Microsoft Exchange Server 2010
Microsoft Certified Trainer
MCTS: Administering SQL 2012
MCSA: Windows Server 2012
VMware VCP 4
VMware VCP 5
CCNA