Asure Site Recovery Limitations – VHD Sizing

Posted Posted in Azure, Cloud

After speaking at yesterday’s event (Microsoft Tech Summit Johannesburg|Protect your data with a modern backup, archive, and disaster recovery solution) on Azure Backup and Azure Site Recovery (ASR), I thought it would be good to follow up with a post that explains some of the limitations around ASR. If you were there you would have seen […]

Azure Site Recovery: IaaS Migration and Disaster Recovery | Pluralsight

Posted Posted in Anouncements, Azure, Power Shell, Technology

I’ve had the privilege of publishing a course thats very close to my heart on all things DR, using the current slew of Azure ARM based features on Pluralsight.The course is titled “Azure Site Recovery: IaaS Migration and Disaster Recovery” The course covers the basics of requirement gathering – as a consultant thats essential viewing, […]

HostedMigration 510 error : the user could not be moved because the tenant has not been enabled for shared SIP address spaces

Posted Posted in Skype for Business, Tips & Tricks

Scenario: When trying to migrate a user from Lync or Skype for Business on premises to Skype for Business online, you may experience the following error HostedMigration 510 error : the user could not be moved because the tenant has not been enabled for shared SIP address spaces AS a pre-requisite, you would have configured […]

Find all receive connectors with Anonymous Relay enabled

Posted Posted in Exchange

When Migrating Receive connectors from an earlier version of Exchange (2007 upwards), it can be useful to find the application Receive Connectors, that are used by applications, multifunction devices, printers, etc. Relay permissions are an Active Directory permission and not an Exchange permission, with that in mind the line of PowerShell below looks for all […]

Office 365 Migration error: The Subscription for the migration user couldn’t be loaded

Posted Posted in Office 365

If you’re migrating to Office 365, you may notice this error message, irrespective of your modality of migration, i.e.e cutover, IMAP or Hybrid mode migrations. The exact error message read: The Subscription for the migration user USER@DOMAIN.COM couldn’t be loaded. The following error was encountered: A subscription wasn’t found for this user.   There are […]

Office 365 users cannot see on-premises free/busy

Posted Posted in Office 365

Issue My Customer introduced an Exchange 2013 server into the Exchange 2010 based organisation, however found that Inbound Free/Busy tests failed using Office 365 based OWA. The W3SVC IIS logs revealed the following error – the line has been shortened for clarity POST /autodiscover/autodiscover.svc/WSSecurity & ASAutoDiscover/CrossForest/EmailDomain//15.01.0225.018 – 500 0 0 124 Cause The Exchange 2013 […]

Exchange 2013 Hybrid Wizard–Empty Certificate Dropdown

Posted Posted in Office 365

When Running the Hybrid mode wizard in Exchange 2013, occasionally you’ll find that the certificate dropdown selector within the wizard is empty, even though you’ve confirmed that the certificate is a valid third party certificate services have been assigned to the same certificate in Exchange with a screen which looks as follows:   We can […]

Office 365, RBL and rejections

Posted Posted in Exchange, Office 365, Tips & Tricks

Occasionally during your working day, you may find that email is rejected after is it sent with a notice similar to the following: Delivery has failed to these recipients or groups: Nicolas Blank Your message wasn’t delivered due to a permission or security issue. It may have been rejected by a moderator, the address may […]