On Mon, 15 Mar 2004, John Hall wrote:
> Has anyone else seen entries in their logs like this:
>
> SMTP protocol violation: synchronization error (next input sent too soon):
> rejected "POST / HTTP/1.0"
>
> Someone has got very confused :)
It's spammers using open proxies to send email using HTTP POST, hoping
that the HTTP request header will be ignored by the target MTA. Might be a
good idea to drop connections whose first command is POST...
--
Tony Finch <dot@???>
http://dotat.at/