Re: [courier-users] Putting a limit on MSA floods?

Flavio Stanchina wrote:

> Martijn Lievaart wrote:
>
>> It's not just broken smtp clients. A rude socket teardown is rightly
>> interpreted by MTAs as a temporary error. So they try again [...]
>
>
> Isn't there a way to return a permanent error in the middle of the
> message? IIRC there isn't, but you certainly know SMTP stuff better
> than I do.
>

No, unfortunately, there is not. The data fase of smtp has no way for
the receiver to stop the sender in midway. And yes, this causes exactly
the problem you are seeing.

M4




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