[CentOS] sendmail mail relay backscatter issue.

Simon Billis wrote on Thu, 4 Feb 2010 13:28:04 -0000:

> I am attempting to stop any
> backscatter that these servers cause by only accepting mail for specific
> users at domain or for domains with a catch-all account.

I believe milter-ahead or smf-sav can be used for this.

Kai

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