Mailing List SIMS@mail.stalker.com Message #6151
From: Technical Support, Stalker Labs <support@stalker.com>
Subject: Re: spamtrap ... another question
Date: Mon, 05 Jun 2000 21:33:12 +0400
To: SIMS Discussions <SIMS@mail.stalker.com>
X-Mailer: CommuniGate 3.2.2b
Hello,

On Mon, Jun 5, 2000, 17:24:55 GMT
  Matt Simpson, <msimpson@uky.edu> wrote:

>When SIMS blocks mail because of a spamtrap message, what (if any)
>message does it send to the sending server? Now I'm wondering why
>this message was retried every 2 seconds for almost an hour.  Did the
>spamming server know the messages were being thrown away? Or was it
>just trying to send me a bunch of copies of the same spam?

SIMS will reject the SMTP DATA command (refusing to get the message body) with SMTP error code 593 and default message "We have reasons to believe this mail is unwanted here".

A good SMTP client/server should abort delivery if it sees a 5xx SMTP error code returned...

Best regards,
Dmitry Akindinov

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