Re: [exim] HTTP requests to port 25?

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Author: Marc Sherman
Date:  
To: exim-users
Subject: Re: [exim] HTTP requests to port 25?
Stephen Gran wrote:
>
> Somebody has managed to trick a proxy server into POST'ing their spam
> to your.address:25 - a common way to make http proxies relay email.


Ah, thanks. So the exploit is against a broken proxy on some other
machine, which then tries to relay to my machine, and fails.

> Enforcing sync + a short delay at connect (2 or 3s) makes just about all of
> these go away.


Yup, I'm enforcing sync, so I'm not seeing any problem here; I was just
wondering what the intent of the spammer was.

- Marc