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a question about TrustedSendersAndDomains
HI, I have a question to ask you. My company is relying on an external company for awareness campaigns against phishing. Since this external company uses around 70 domains to run awareness campaig...
- If you don't have a message hygiene solution in front of your on-premises Exchange infrastructure, it's probably easier to create a mail flow rule and set the SCL to -1 for messages from those domains
It's not Outlook doing the checks, it's either Exchange if you have anti-virus or anti-spam enabled, or a 3rd party message hygiene service. The transport rule will set the message to bypass any anti-spam rules, but the anti-virus (malware) rules you can't bypass.
Thanks