This article examines the different components of Defender for Office 365, and how you can customize the configuration beyond the baselines to enhance the relevance and impact the policies have on your tenant. The most important aspects to review when modifying the configuration from baselines and the reasons to consider each configuration option are highlighted, but they don’t take you all the way. The items listed here are a subset of what’s available, but when combined with the baselines will help you to bring your Defender implementation to the next level.
How to use Exchange Online mail flow rules to improve the effectiveness of your EOP spam filtering and protect Office 365 users from phishing attacks.
A curious case of legitimate Azure AD Identity Protection weekly digest emails being quarantined by EOP when international spam filtering is enabled.
Here's my experience using the Advanced Threat Protection features in Exchange Online Protection to protect my Office 365 tenant.
How to plan, test and implement changes to MX records and inbound email traffic routes in an Exchange Server environment.
How to configure an Exchange Server 2010 Edge Transport server to use Spamhaus as an IP Block List Provider.
modusGate by Vircom is an email security product that protects Exchange Servers from spam and viruses.
GFI MailEssentials is an anti-spam and email management product from GFI Software delivering 99% accuracy for spam detection and email management tools for Exchange Server environments.
I used to do some work for a customer who's idea of running an evaluation of a new system was…
Over at AllSpammedUp.com I've written an article on protecting both yourself and others from backscatter spam. Backscatter spam is also known as NDR spam and is the result of address spoofing combined with spam addressed to invalid recipients. As an Exchange administrator you want to be sure you aren't contributing to the problem with your own email server. Read the article to find out how to avoid send NDR spam to others.