On 10 Jan 2012, at 16:56, Dennis Carr wrote:

On Tue, 10 Jan 2012, Leslie León Sinclair wrote:

Can anyone point me in the right direction, I´m stucked here and Google
is not helping...

If you mean the act of disabling the ability of using a telnet client to connect to port 25, you're best not doing this - or, just set any session timeouts to something short to prevent manual interaction.

I hope that is simply an offhand random thought and not something you've actually done.

Reducing timeouts to the point where they would seriously interfere with people doing manual SMTP will almost certainly mean failing to comply with the SMTP standard and would carry a real risk of blocking legitimate mail. While it is true that most SMTP transport happens as fast as the sender can get 2xx responses, it does not always work that way. Also: when you diverge from the standard for no compelling reason you will find sympathy with any interop problems to be in short supply.

--
Bill Cole

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