[Mimedefang] Suggestions on rejecting relays that provide syntactically-invalid arguments to HELO/EHLO

Kenneth Porter shiva at sewingwitch.com
Fri May 23 01:44:00 EDT 2003


--On Thursday, May 22, 2003 7:56 PM -0500 Michael Sims
<michaels at crye-leike.com> wrote:

> I'm also trying to decide what error I want to
> give people.  I should probably give an error such as "Invalid argument
> passed to HELO" or even "HELO requires fully qualified domain name or
> address literal", but I hesitate to tell the spammers how to fix their
> spamware to bypass this.

Perhaps something cryptic like "Peer not RFC-compliant"?





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