North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Outbound mail filtering on large mail / web server farms - just an idea or two that I have
On 11/21/05, Michael Loftis <[email protected]> wrote: > Oh I understand the concept perfectly well. It's just that I can't see > through to an implementation easily. The system I'm referring to has no > internal way of telling the difference easily between forwarded mail and > 'other' mail, it's all passed into the same set of virtual tables and the > only difference is local versus remote delivery. I can't classify .forward Separate your MXs from your outbound servers And have local traffic rewritten to an internal domain (say wgops.com.internal) just for local delivery .. all other outbound traffic on your MXs can be assumed to be either * Bounces [route em out of a separate host as well - tracking those helps block a ton of spam] * Forwarded emails Your outbounds of course go out via a separate set of boxes. Multiple machines. Or multiple postfix instances on the same box. Whatever --srs
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