Three easy tips on reducing SPAM in Office 365
I wanted to do a write up of the tips I found in Office 365 to reduce the number of unwanted messages in Office 365. I will skip the most basic ones like adding the SPF record as this is told by the domain configuration that you need that.
The more advanced once and usually not configured settings can bring you more.
Let us start with the anti-spam policy, this one is configured with the basic settings, but are very loose. By altering this policy you will remove some spam that is hitting your mailbox and dump it in the SPAM folder or even better the quarantine. The last one is not in your personal mailbox but stays on the server. So my recommendation is to go to the following URL https://protection.office.com/antispam and alter de default SPAM filter policy with the following settings