Linux Spam Filter Linux Mail Setup, Spam And Online / Offline Server Question?

Linux mail setup, spam and online / offline server question? - linux spam filter

Best mail setup question ...

Scenario:
- Have your own domain name, you can abc.com, for example.
- Facilitator 1: Do you have a Linux server at home in a sendmail xDSL, which is not always connected to the network. Running fetchmail think outside the box to give 2-mails from user1 to know POP account abc.com. / Etc / aliases is used to keep too many aliases abc.com
Be - Host 2: Linux-related spamassassin server (linode) Permantly to the network running with qmail, and immersed in the rule * @ abc.com in a POP account User1. The main direction points to host abc.com MX 2 Abc.com secondary and tertiary MX to a backup domain queue, where it is hosted.

Problem:
- As the host 2 is a map showing all in one e-mail to abc.com to accept all messages to any e-mail.
- SpamAssassin to filter spam to host 2
- File Alias is the host-1 (can be added as aliases or easy to remove)

Is there an easier way to configure e-mail ... Then a coil backup mail without waiting for only 2 configuration allows abc.com