Theodore V Tolstoy wrote:
> Hi!
> 
> I ran into very big problem using Sendmail+DBMail because together they
> only allow a late bouncing of mis-addressed messages for my domains. So if
> my SMTP-server recieves such message with spamtrap as return address
> it gets blacklisted by appropriate RBL (e.g. SPAMCOP).
> 
> Is it possible to modify sendmail's 'check_rcpt' ruleset to check
> recipient's email against DBMail user database to force Sendmail to make
> an _early bounce_?

Checkout milter. It has hooks to do this (xxfi_envrcpt) though you may need to
write your own plugin.

> 
> As far as I know DBMail itself does not supply SMTP-server with such
> feature.

No, because in postfix (and qmail, and exim4 too afaik) this is trivial to do.

-- 
  ________________________________________________________________
  Paul Stevens                                      paul at nfg.nl
  NET FACILITIES GROUP                     GPG/PGP: 1024D/11F8CD31
  The Netherlands________________________________http://www.nfg.nl
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