Hi anonymous user-9128,
Thank you for posting query in Microsoft Q&A Platform.
I got update from internal team.
SFTP in Blob Storage does not support an algorithm that ADF can communicate (diffie-hellman-group-exchange-sha256, diffie-hellman-group-exchange-sha1, diffie-hellman-group14-sha1, diffie-hellman-group1-sha1).
Hence you are seeing that error message while trying to connect from ADF to SFTP on blob.
I encourage you to log this feedback item as future suggestion item at below URL and up-vote same. Product team closely monitor all feedbacks and consider them for future releases.
https://feedback.azure.com/d365community/forum/1219ec2d-6c26-ec11-b6e6-000d3a4f032c
Please feel free to share your feedback item like here once created. So that other community members can also up-vote it.
Hope this will help. Thank you.
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