Blocking a mass spam attack (updated)
Recently a new trend has emerged where criminals are attempting to hide their activity behind a barrage of spam email to the compromised mailbox or to any popular mailbox in the domain.
Exchange
12 posts
Understanding Standard and Strict Preset policies in Defender for Office
Defender for Office has a new way of making it easy for you to deploy policies. Instead of […]
Assign email quarantine management responsibility
It is determined that a user outside of normal IT operations should be given the ability to manage the email quarantine for the company.
10 thing about, and 3 security tips for Managing Shared …
10 Management tips and 3 security tips for shared mailboxes
Hafnium Mitigation: Surgical Restore
do I dare ignore what I see in the logs if my AV is giving me a clean bill of health? Can I really afford to rebuild this server when things seem mostly ok?
Exchange server vulnerability summary
There's been a lively discussion with "breaking news" about the extent of the intrusion into networks and the solution to it over on our Ransomware and Security group. Now that it seems to have reached a stable information point I thought I would summarize that you need to know.
M365 Admin: Don’t miss this setting! March recording now available
This month I covered a whirlwind of email security settings.
Protecting 365 email
New ways to secure email use old tools like transport rules, some are anti-phishing rules, some are cloud app security policies, some are conditional access.
Office 365 NEW email Encryption configuration
The ability to encrypt email is a critical feature. So much information gets sent via email — corporate […]
How to Re-Index an Exchange 2010 Mailbox Database or Why …
As a result of finding that eDiscovery results were not complete I needed to re-index the mailbox database […]
Setting up Autodiscover for SBS 2011 and single name domains
If you are using Exchange 2007 or Exchange 2010 (SBS or non-SBS) and are using a single-name certificate, […]
Set Exchange 2010 and 2013 Internal and External Virtual Directory …
Here are the elevated PowerShell commands to run to set the virtual directory URLs Get-ActiveSyncVirtualDirectory -server EXCHANGE | […]