If we have the SMTP log and my assumption holds accurate, I would put a **NOOP** as a check in per [RFC 722](https://datatracker.ietf.org/doc/html/rfc772): ``` NOOP (NOOP) This command does not affect any parameters or previously entered commands. It specifies no action other than that the receiver send an OK reply. ```
Bug 2050206 Comment 8 Edit History
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If we have the SMTP log and my assumption holds accurate, I would put a **NOOP** as a check in per [RFC 722](https://datatracker.ietf.org/doc/html/rfc772): ``` NOOP (NOOP) This command does not affect any parameters or previously entered commands. It specifies no action other than that the receiver send an OK reply. ```
If we have the SMTP log and my assumption holds accurate, I would put a **NOOP** as a check in per [RFC 772](https://datatracker.ietf.org/doc/html/rfc772): ``` NOOP (NOOP) This command does not affect any parameters or previously entered commands. It specifies no action other than that the receiver send an OK reply. ``` Yeah, I know there are much newer RFC duplicating that, but where is the fun in that? The expected answer is `250 OK` in most cases.