If the SMTP Proxy is working with your domain, you should see a record of email traffic on the 'SMTP Log' tab of the 'Mail Manager'. I'm guessing that it will show that the two emails that were processed were ones from the Astaro itself.

Again, if the SMTP Proxy were working, the DNAT and PF rules wouldn't have any effect on your email. Are you sure you have "YourDomain.com" instead of "YourDomain" or "SubDomain.YourDomain.com" in 'Domains'?

Cheers - Bob
PS Eric, I'm pretty sure that proxy rules are evaluated before PF or NAT rules.

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