Exchange 2010 Edge – Unable to Relay

Got a call from a customer informing me that inbound mails are bouncing with 550 Unable to relay – but only on 1 of their Exchange 2010 Edge servers. The other server works fine. First thing I ask is whether the receive connector on the Edge server has Anonymous permissions allowed – upon which they…

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Office 365 – Outlook Certificate Popups

I got a mail the other day from a colleague requesting assistance on behalf of a partner around an Office 365 certificate error in Outlook. The scenario was that a certificate expired – I’m not sure what certificate they referred to so I assumed the ADFS/TLS certificate. They renewed the certificate, but Outlook clients were…

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Office 365 Certificates and the Hybrid Configuration Wizard

It’s been a while since my last blog, but the world of Microsoft Consulting has been keeping me very busy. In this post I’m going to cover an issue I picked up during an Office 365 Hybrid deployment for a customer. I’m not going to go into much detail around the actual deployment as there’s…

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