Watermarking quirks still in 4.62.8

Randal, Phil prandal at herefordshire.gov.uk
Tue Jul 31 10:19:14 IST 2007


Hang on,

A legitimate email is accidentally sent to the wrong email address
because of a simple typo.  

It should be bounced back.

Spam we deal with in other ways.

Phil

--
Phil Randal
Network Engineer
Herefordshire Council
Hereford, UK  

> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info 
> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf 
> Of Scott Silva
> Sent: 30 July 2007 17:32
> To: mailscanner at lists.mailscanner.info
> Subject: Re: Watermarking quirks still in 4.62.8
> 
> Randal, Phil spake the following on 7/30/2007 5:28 AM:
> > A couple of issues with watermarking:
> > 
> > 1: Read receipts are getting blocked ("spam(no null-header or sender
> > address)")
> > 
> > 2: If I send an email from outside to a non-existent email 
> address here,
> > the bounce message from our Exchange server gets blocked.  
> I've worked
> > around this using a ruleset, but shouldn't MailScanner be letting
> > through bounces originating from the internal network (or RFC1918
> > addresses) anyhow?
> > 
> You really need to have the first point of contact in your 
> network do the
> checks for non-existing users. Otherwise you risk Joe Jobbing 
> the rest of the
> world. It is much better to drop the connection with an error 
> than to bounce
> something back to a possibly forged address.
> 
> -- 
> 
> MailScanner is like deodorant...
> You hope everybody uses it, and
> you notice quickly if they don't!!!!
> 
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