Hello is fine for the same reason as ACK. | Hacker News

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		endisneigh on April 19, 2022 \| parent \| context \| favorite \| on: Please Don't Say Just Hello in Chat Hello is fine for the same reason as ACK.

rzzzt on April 19, 2022 | [–]

   HELO mailclient.example.com

sophacles on April 19, 2022 | [–]

No, SYN would be the appropriate opener if ACK was an acceptable response.

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