From the Microsoft Teams / Slack message profile page

Open the required message profile from the Security Events.
To create an allow-list, under Security Stack, click Create Allow-List next to the malicious URL / Domain.

or

Click More Info and then click Create Allow-List next to the malicious URL / Domain.
To create a block-list, under Security Stack, click Create Block-List next to the URL / Domain.

or

Click More Info and then click Create Block-List next to the URL / Domain.
Select the exception type (Exact URL or Domain).

Avanan automatically detects and shows the URL or Domain.

Note:

Only URLs identical to the typed exact URL will be allow-listed / block-listed.
If required edit the URL / Domain.
If required, enter a description for the exception under Comment, and click OK.


	Notes: Allow-listed URLs will not be flagged as malicious. Block-listed URLs will not be flagged as clean.