Hi,
> > We're only doing basic spam protection for them, > > What is the nature of the "basic spam protection"? Can it be done > pre-queue? > Yes, most likely, I would think. It's a basic spamassassin setup with a few rules looking for specific patterns, as well as some RBL network checks. The only plausible solution on your end is to not queue mail for this > domain, but rather proxy it through to the destination, with the > response to "." coming from the final downstream systems. This may be > possible with: > > http://www.postfix.org/postconf.5.html#smtpd_proxy_filter > > provided you can dedicate an IP address (port 25 smtpd(8) instance) for > this destination. So I would do this in place of the transport filter I currently have in place? example.com smtp:mx1.hc4719.iphmx.com Thanks, Alex
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