Outbound Mail Scanning

Spicer, Kevin Kevin.Spicer at BMRB.CO.UK
Fri Jun 20 10:16:52 IST 2003

Martin Hepworth wrote:
> hhmmm
> so how does this affect when from and to are @yourdomain.com. I've
> seen quite of spam where they use the lower priority MX and also send
> and from the recipient? The current product we use gets confused and
> sees it as 'from' out domain and therefore only applies outbound
> rules even though the message is itself inbound...

You should, wherever possible, use IP addresses (or whole blocks of IP) to whitelist your internal servers (or clients if they send directly to the mail server) rather than From domains.

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