Suppose your local machine is called
/etc/hosts you will see:
127.0.0.1 athens localhost
/etc/hostname you would see:
The host rose does not exist outside of my local network.
Externally my email comes through Kayon.Toga@togaware.com.
You can set up your mail in
/etc/exim.conf to include:
qualify_domain = togaware.com qualify_recipient = rose.togaware.com local_domains = localhost:rose.togaware.com host_accept_relay = localhost
This will ensure all outgoing mail appears to come from email@example.com. Local mail is delivered locally without leaving rose. All incoming mail is collected by fetchmail, delivered locally by Exim.
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