EOP Field Notes
Exchange Online Protection: Notes from the field
Tips to prevent Zero-Day Malware with EOP
I have recently seen a lot of zero-day malware attacks and interestingly, these attacks aren’t...
Author: Andrew Stobart Date: 06/05/2015
Exchange Online Advanced Threat Protection - now available
Just a quick note in what will probably be my shortest blog post ever. Advanced threat Protection, a...
Author: Andrew Stobart Date: 06/05/2015
Support Hot Topics – Strategies to Mitigate Phishing Attempts
Welcome to the first episode in a new series called Support Hot Topics for Exchange Online...
Author: Andrew Stobart Date: 05/29/2015
Noteworthy Exchange and Office 365 Sessions from Ignite
Last week was Microsoft’s Ignite conference in Chicago. There were many product announcements...
Author: Andrew Stobart Date: 05/12/2015
In case you missed it - April 2015 edition
There was a lot of Exchange Online / EOP and Office 365 news in April and I wanted to pull them all...
Author: Andrew Stobart Date: 04/27/2015
Need details on who and what are triggering your rules? There's a cmdlet for that!
Need to get a list of all messages that triggered a particular transport rule, or do you want to see...
Author: Andrew Stobart Date: 04/21/2015
Advanced Threat Protection
July 2015 Update: Exchange Online Advanced Threat Protection is now available. See the product page...
Author: Andrew Stobart Date: 04/13/2015
Use PowerShell to search for transport rules (updated)
Update (April 7, 2015): More content and examples have been added to this article since the original...
Author: Andrew Stobart Date: 04/06/2015
MS-DOS Mobile has arrived
I typically avoid the Internet like the plague on April fools day, but this morning I peaked and...
Author: Andrew Stobart Date: 04/01/2015
EOP IP Address Additions - March 2015 Edition
This is a quick public service announcement before the weekend starts. Exchange Online Protection...
Author: Andrew Stobart Date: 03/20/2015
Troubleshoot a broken junk mail folder
I recently worked on a very interesting case that I wanted to share. This organization had set EOP...
Author: Andrew Stobart Date: 03/13/2015
Ensure your SPF Record is Correct
Update: Feb 26, 2015 - A great post about Office 365 SPF checks was recently written by one of our...
Author: Andrew Stobart Date: 02/06/2015
Recipient Notifications
The ability to send a notification to the recipient when a transport rule triggers. This is a...
Author: Andrew Stobart Date: 01/16/2015
IP Ranges Added to EOP
On TechNet we publish the range of IP addresses that are used when sending mail out of a custom EOP...
Author: Andrew Stobart Date: 01/05/2015
An Ode to EOP
This is typically a slow week for people, so what better time than to post something fun about...
Author: Andrew Stobart Date: 12/29/2014
Top Ten Posts of 2014
I only began this blog in June of this year and so it’s hard to believe that it is already six...
Author: Andrew Stobart Date: 12/24/2014
Message Trace, the PowerShell Way
From my experience, a very small number of people actually choose PowerShell over the GUI (Graphical...
Author: Andrew Stobart Date: 12/16/2014
Exchange Server December Updates
Update, Dec 11/14: Exchange Server 2010 SP3 Update Rollup 8 has been temporarily pulled due to a...
Author: Andrew Stobart Date: 12/09/2014
Remote Desktop Connection Manager updated to v2.7
Remote Desktop Connection Manager, or RDC Man, is a wonderful piece of software that I’ve been...
Author: Andrew Stobart Date: 12/02/2014
An Early Gift, EOP Bulk Mail Detection - The Easy Way
This past summer we added new bulk detection capabilities to Exchange Online Protection. At the...
Author: Andrew Stobart Date: 11/27/2014
Easily tell which transport rules a message triggered
Hello fellow traveller, come sit with me by the fire, there is plenty of room. You look to be weak...
Author: Andrew Stobart Date: 11/20/2014
Transport Rule Limit Increase
In the past the maximum number of transport rules that you could create in Exchange Online...
Author: Andrew Stobart Date: 10/27/2014
Best Practices for Finding Executable Content
UPDATE (October 14, 2016): We now recommend using the Common Attachment Types Filter to block file...
Author: Andrew Stobart Date: 10/14/2014
Inbound Connector Configuration You’ll Want to Avoid
I recently worked with a customer who had a configuration in their EOP outbound connector that broke...
Author: Andrew Stobart Date: 09/05/2014
Behavior Change When Setting the SCL with a Transport Rule
With my coffee currently in one hand, it would be very useful if I could type with only my other...
Author: Andrew Stobart Date: 08/28/2014
Special Case, Set SCL to 0
Update (August 28, 2014) - Setting the SCL with a transport rule to anything from 0 to 4 will cause...
Author: Andrew Stobart Date: 08/22/2014
Importing Safe and Block Lists with PowerShell
I just dropped my van off for some maintenance at the dealership and am currently waiting for a...
Author: Andrew Stobart Date: 08/15/2014
One MX to Rule Them All
Before I start I would like to call out that I think this is the best blog title that I have come up...
Author: Andrew Stobart Date: 08/06/2014
Is X-Microsoft-Antispam a New EOP Header
Yes, yes it is, and I’m glad you noticed! X-Microsoft-Antispam is quite new and only started...
Author: Andrew Stobart Date: 07/30/2014
Quarantine and PowerShell
The EOP online quarantine is a wonderful feature that can be easily managed through the Office 365...
Author: Andrew Stobart Date: 07/22/2014
Verifying ESN Delivery
So, you have decided to use the Exchange Online Protection (EOP) quarantine and have enabled End...
Author: Andrew Stobart Date: 07/03/2014
Advanced Spam Filtering and X-CustomSpam
When a legitimate message is marked as spam, the first question usually asked is “why?”...
Author: Andrew Stobart Date: 06/27/2014
On-Premises Delivery Failover
Organizations with on-premises mail environments often will have a primary site and at least one...
Author: Andrew Stobart Date: 06/27/2014
The Resolver
While “The Resolver” would be a great nickname for a councillor, that’s not quite...
Author: Andrew Stobart Date: 06/25/2014
Office 365 for Business Public Road Map & First Release Program
Yesterday we released details on two very exciting items, the Office 365 for business public roadmap...
Author: Andrew Stobart Date: 06/20/2014
Outbound Connector Smart Host Behavior
If you have an on-premises mail environment that you are protecting with Exchange Online Protection...
Author: Andrew Stobart Date: 06/16/2014
Prevent DLs From Receiving ESNs
I’m often asked how to prevent an End user Spam Notification (abbreviated as ESN from this...
Author: Andrew Stobart Date: 06/13/2014
Great Sessions from TechEd North America 2014
Last month I attended TechEd North America 2014 in Houston Texas. In addition to attending some...
Author: Andrew Stobart Date: 06/10/2014
TLS, Connectors, and You
Update (September 3, 2014) I was recently involved in a case where a customer needed more...
Author: Andrew Stobart Date: 06/06/2014
Inaugural post
In my current role I work with customers who are implementing Exchange Online Protection. From...
Author: Andrew Stobart Date: 06/02/2014