Exchange Online Free/Busy federation between two Office 365 tenants

I have recently tried to establish the GAL Federation between two of my Office 365 Exchange Online tenants to share the Free busy Availability between those domains. I have used the domains exchangeonline.in and the free one manuphilip.onmicrosoft.com 1) Connect to Exchange Online through PowerShell as an administrator user on one of the domain (https://technet.microsoft.com/en-us/library/jj984289(v=exchg.150).aspx) 2) Find … Continue reading “Exchange Online Free/Busy federation between two Office 365 tenants”

Common mailbox / folder sharing scenarios Guided Walkthroughs

Microsoft has published certain Guided Walkthroughs helpful for us when working with Exchange, Outlook, Office 365 (o365) etc. to set up mailbox, calendar etc. Very helpful in learning and troubleshooting instances: Following are the guided walkthroughs available: Sharing calendar and contacts in Office 365 Setting up a mailbox that multiple users can access and use … Continue reading “Common mailbox / folder sharing scenarios Guided Walkthroughs”

Exchange 2003 to 2010 Migration Roll back

Now as days one of the major migration project handled by exchange administrators are Moving mailboxes from Exchange 2003 to Exchange 2010. When doing this, we should have a proper roll back plan, when we required to move back the mailboxes migrated to Exchange 2010 back to 2003. Recently one of the customer has requested me to include … Continue reading “Exchange 2003 to 2010 Migration Roll back”

Exchange 2013 with Outlook 2013-Force OAB Generation

In all previous Exchange releases, OAB generation was bound to a specific Exchange server. The disadvantage with this approach was that only one server was configured for OAB generation, and it was a single point of failure. In Exchange 2013, the OAB is generated by each Exchange 2013 Mailbox server(s) that hosts a special type of … Continue reading “Exchange 2013 with Outlook 2013-Force OAB Generation”

SMTP server error: 5.7.1 Unable to relay

I am receiving much requests to fix errors like ‘SMTP server error: 5.7.1 Unable to relay’. This is happening mostly when a non-Exchange server is trying to send through Exchange Servers for example an application tries to send through Exchange server like news letters, may be SharePoint etc. To relay mail, we need to create a Receive Connector on … Continue reading “SMTP server error: 5.7.1 Unable to relay”

Hosting of Exchange 2013 using WebsitePanel 2.1

I have handled an Exchange 2013 Hosting project for a hosting service provider. We have selected the free Exchange hosting solution named Website Panel for this. As the Exchange Server version is 2013, the only supported version of Websitepanel for Exchange 2013 is Website Panel 2.1 Beta. We are quite sure that the tool may have some … Continue reading “Hosting of Exchange 2013 using WebsitePanel 2.1”

Re-create OWA virtual Directories in Exchange 2013

Some times, you may be fed up with some sort of issues related to ‘owa’ , ‘ecp’ or any other virtual directories. Any repair or fine tuning mayn’t fix the issue and you will have to re-create the virtual directories from the scratch. The difference in Exchange 2013 is that, it has got 2 websites hosted … Continue reading “Re-create OWA virtual Directories in Exchange 2013”

Exchange 2013: Remote host said: 451 4.7.0 Temporary server error. Please try again later. PRX2

Today I met a strange issue in Exchange 2013 new installation. Incoming emails were not arrived at the mailboxes. The NDR shows “Remote host said: 451 4.7.0 Temporary server error. Please try again later. PRX2” I checked everything on the DNS side and no joy !!! The server used were a multi-role server and found … Continue reading “Exchange 2013: Remote host said: 451 4.7.0 Temporary server error. Please try again later. PRX2”

Windows Server 2012 Naming Information cannot be located because: The specified domain either doesn’t exist or could not be contacted. (Applicable to Windows 2016 also)

This solution works for Windows 2016 also 🙂 I met a difficult situation while setting up a DC for a new forest in Windows Server 2012 . ADDS has been setup and promoted the server as the Domain Controller for the new forest/domain. But none of the AD tools were not able to open, says a … Continue reading “Windows Server 2012 Naming Information cannot be located because: The specified domain either doesn’t exist or could not be contacted. (Applicable to Windows 2016 also)”