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Hi@Innocent Heartvoice
It has been a while, how is everything going?
If you have any update about this issue, please feel free to post back.
Exchange 2019 content filtering block messages
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Innocent Heartvoice
296
Reputation points
We have Exchange 2019 Edge and Exchange DAG servers in the environment. We are having an issue where a user outside the organization domain is sending a specific email with a .pdf attachment that is not received and the user receives a rejected email message saying Exchange content filtering blocked the message. Other email from the same user is received without issue.
I have allowed the user to filter the content even filtering the domain name but still not receive the email.
Please suggest that how to resolve this issue.
Exchange | Exchange Server | Management
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BenOu-MSFT 586 Reputation points2022-08-31T07:32:36.077+00:00 Hi!
Can you explain in detail about the methods you try to use to allow the sender to send a mail with PDF attachment?
Did you use the method of configuring sender exceptions for content filtering recorded in Microsoft Document:content-filtering-proceduresto config domain?
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Accepted answer
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BenOu-MSFT 586 Reputation points
2022-09-05T06:05:12.72+00:00 -
Innocent Heartvoice 296 Reputation points
2022-09-06T09:52:45.383+00:00 Hello @BenOu-MSFT
The issue has resolved now, again after updating/setting the list on Edge serer the emails are now receiving with .pdf attachment.
Hope this will help others to resolve their issue.
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1 additional answer
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Innocent Heartvoice 296 Reputation points
2022-08-31T08:53:43.223+00:00 We used the Set-ContentFilterConfig -BypassedSenderDomains microsoft.com,gmail.com but could not help and the attached email with .pdf is not receiving.
From the same user we receive the emails with word, excel attachment. One more thing I want to know that what is the best SCL value for rejecting email should be set on the content filtering.
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BenOu-MSFT 586 Reputation points
2022-09-01T06:21:11.407+00:00 Hi
Here is the detailed list of SCL threshold parameters. There is no best SCL value for rejecting email. The default SCL value for rejecting email is 7 but you can change it to meet your own requirement.
After you run the “Set-ContentFilterConfig -BypassedSenderDomains” command, what NDR information did the sender receive when the sender sent the mail with PDF attachment failed?
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