Every night Fine décor are trying to send us invoice data between 4-5 pm and it is being quarantined and appears in the admin e-mail.

I can obviously release these by clicking on send but is there a way of accessing the quarantine records and telling them that this sender or ip is safe?

I am not sure how I can see or where to look for a quarantine list?

Yes, you can configure Exchange 2019 on your server, ex2, to prevent emails from a specific external sender, like [email protected], from being quarantined by using a Mail Flow Rule (also known as a Transport Rule).

This is generally the most effective and granular way to ensure a specific sender bypasses the spam and quarantine filters.

Steps to Whitelist the Email Address

You'll create a Mail Flow Rule in the Exchange Admin Center (EAC) that checks for the specific sender and sets the Spam Confidence Level (SCL) to bypass spam filtering.

1. Log in to the Exchange Admin Center (EAC)

1. Open a web browser and navigate to the EAC for your server, arg-ex2 (the address is typically https://arg-ex2/ecp).


2. Log in with an administrator account that has the necessary permissions (like Organization Management or Transport Rules role).

2. Create the New Mail Flow Rule

1. In the EAC, navigate to Mail flow > Rules.


2. Click the Add ($+$) button (or the Add a rule dropdown) and select Create a new rule... (or Bypass spam filtering if available as a template).


3. In the New rule window, configure the following settings:
   
   
   • Name: Give the rule a descriptive name, e.g., Bypass Quarantine for [email protected].
   
   
   • Apply this rule if... (Condition):
     
     
     • Select The sender... and then is this person.
     
     
     • In the sender selection window, type [email protected] and click the Add ($+$) button, then click OK.
     
     
     
     
   
   
   • Do the following... (Action):
     
     
     • Select Modify the message properties... and then set the spam confidence level (SCL).
     
     
     • In the window that appears, select Bypass spam filtering. Click OK.
     
     
     
     
   
   
   • Audit this rule with severity level: You can leave this at the default or select a value like Low for tracking.
   
   
   • Enforce the rule and set the Priority to a low number (like 0 or 1) so it's processed early.
   
   
   • You can leave the rest of the settings as default.
   
   
   
   

3. Save and Test the Rule

1. Click Save to create and activate the rule.


2. Test the rule by sending a test message from [email protected] to one of your recipients. It should now be delivered directly to the inbox, bypassing the spam filter and quarantine.

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Important Considerations

• Security Risk: Whitelisting bypasses your security filters. Ensure you trust the sender completely, as this rule will allow any email from this address, regardless of its content or threat level, to bypass spam, phishing, and most other security checks (though anti-malware scanning is usually not bypassed).


• IP Address (More Secure): A more secure method, if you can obtain it, is to use the sender's IP address as an additional condition in the Mail Flow Rule (or use the IP Allow List in the Connection Filter Policy). This prevents a malicious actor from spoofing the email address from a different server.
  
  
  • If you choose the IP Allow List, it applies to all mail from that IP, not just the specific email address.
  
  
  • If you use the Mail Flow Rule, you would add an AND condition: The sender's IP address is in any of these ranges or exactly matches and input the sending server's public IP.
  
  
  
  

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