![Spam email and Office 365 environment - connection and content filtering in EOP - Microsoft Community Hub Spam email and Office 365 environment - connection and content filtering in EOP - Microsoft Community Hub](https://techcommunity.microsoft.com/legacyfs/online/media/TNBlogsFS/prod.evol.blogs.technet.com/CommunityServer.Blogs.Components.WeblogFiles/00/00/00/31/06/metablogapi/image_1C80CAF1.png)
Spam email and Office 365 environment - connection and content filtering in EOP - Microsoft Community Hub
![Add an Email Flow Rule to Bypass Spam Filtering, Secure Email Gateway, Comodo Secure Email Gateway Office 365 Add an Email Flow Rule to Bypass Spam Filtering, Secure Email Gateway, Comodo Secure Email Gateway Office 365](https://help.comodo.com/uploads/Comodo%20Secure%20Email%20Gateway%20Enterprise/fe4197b9c59c17450029f8915c5f3f5a/5eac818f1e1c4adc19d335055b06586b/9aaaa9ec9892f7fed53df35e26775b81/O365_Img7_060518.png)
Add an Email Flow Rule to Bypass Spam Filtering, Secure Email Gateway, Comodo Secure Email Gateway Office 365
![Allowlisting by Email Headers in Exchange 2013, 2016, or Microsoft 365 (formerly Office 365) – Knowledge Base Allowlisting by Email Headers in Exchange 2013, 2016, or Microsoft 365 (formerly Office 365) – Knowledge Base](https://support.phishingtackle.com/hc/article_attachments/360031368051/2019-06-19_15_34_14-rules_-_Microsoft_Exchange.png)
Allowlisting by Email Headers in Exchange 2013, 2016, or Microsoft 365 (formerly Office 365) – Knowledge Base
![How to Configure Office365 to Only Accept Email From a 3rd Party Spam Filter | SlashAdmin \ Life in IT How to Configure Office365 to Only Accept Email From a 3rd Party Spam Filter | SlashAdmin \ Life in IT](http://www.slashadmin.co.uk/wp-content/uploads/2016/12/Office365-Setup-3rd-Party-Spam-Filter-5.png)