Preventing backscatter with sendmail

Michael Mansour micoots at
Mon Jan 19 06:59:29 GMT 2009


--- On Sat, 17/1/09, Paul Welsh <paul at> wrote:

> From: Paul Welsh <paul at>
> Subject: Preventing backscatter with sendmail
> To: mailscanner at
> Received: Saturday, 17 January, 2009, 11:56 AM
> I'm looking for a way of doing with sendmail what exim
> does out of the box,
> ie, recipient verification when the MailScanner/Sendmail
> server is a front
> end to Exchange.
> I've been googling and from what I can see I have the
> following options:
> milter-ahead -
> Mailfromd
> scam-backscatter -
> access.db
> ldap lookups
> Only about 100 - 120 email addresses so access.db is a
> possibility.
> Milter-ahead costs 90 euro (probably worth £150 by the
> time I can get round
> to buying it!).  LDAP lookups seem a bit complex.  
> Mailfromd seems the most popular.  Is that the de facto
> standard way of doing this?

I don't think there's any defacto standard, just depends on your selection and what works best for you.

I use scam-back (scam backscatter) and have been for years, it works well and fits exactly the work it's required to do on multiple hosted domains.


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