Many things in Exchange and Office 365 take too long to do via the admin console, but are too obscure to do routinely via PowerShell. Unless, that is, you have a script! This function will add a single sender address to your spam policy’s BlockedSenders attribute or a sender domain to the BlockedSenderDomains attribute. (If you find any errors in the code below, let me […]
Yesterday there were a million and one web pages on Sender Policy Framework. Today there are a million and two. When I was researching SPF record syntax for some changes in my email routing, I couldn’t find a single page that gave all the information I needed. I hope this one will save you some time. Sender Policy Framework is a quick-and-dirty method for using […]
It seems like I do a search and destroy to find and delete phishing attempts before they are opened–and possibly believed–by the end users at least once a month. We all see random phishing attempts using the names of banks and social media giants all the time. Most anti-spam software catches those easily. Unfortunately, if you have more than a few thousand users, you are […]