July, 2014

| |

|

On-Premises Delivery Failover

Posted 7 months ago

by Andrew Stobart
- 6 Comments
Organizations with on-premises mail environments often will have a primary site and at least one backup site. When Exchange Online Protection is being used to protect those on-premises mail environments, the ideal configuration would have EOP only delivering...
Advanced Spam Filtering and X-CustomSpam

Posted 6 months ago

by Andrew Stobart
When a legitimate message is marked as spam, the first question usually asked is “why?” It can sometimes, but not always, be quite difficult to find the explanation. If an enabled Advanced Spam Filter (ASF) option has caused the spam detection...
Verifying ESN Delivery

Posted 6 months ago

by Andrew Stobart
- 2 Comments
So, you have decided to use the Exchange Online Protection (EOP) quarantine and have enabled End user Spam Notifications (ESN). Great choice! Now, after a couple of days have passed, you are wondering if everything is working as it should. How can you...
Quarantine and PowerShell

Posted 6 months ago

by Andrew Stobart
- 15 Comments
The EOP online quarantine is a wonderful feature that can be easily managed through the Office 365 Portal. However, if you are looking for more functionality and flexibility with quarantine management, you’ll need to turn to PowerShell. Before...
Is X-Microsoft-Antispam a New EOP Header

Posted 6 months ago

by Andrew Stobart
- 5 Comments
Yes, yes it is, and I’m glad you noticed! X-Microsoft-Antispam is quite new and only started showing up in messages passing through EOP a few months ago. This new header currently contains two published values to help with bulk mail and phishing...