Other or undefined status — generic success

The message was successfully delivered but the receiving system did not return a more specific enhanced status code. This is a catch-all success indicator used when no finer-grained status code applies.

1. 1The receiving MTA successfully accepted the message and does not implement specific enhanced status codes.
2. 2The MTA uses 2.0.0 as a default success code when a more specific 2.x.x code is not applicable.
3. 3Legacy SMTP servers that support enhanced codes only minimally may return 2.0.0 for all successes.

Successful message acceptance by an MTA that returns a generic enhanced status rather than a specific success code.

DATA
.
# Server returns:
250 2.0.0 OK: queued as ABC123

250 2.0.0 OK ...

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