Configure Wordpress to send e-mail for multiple domains?

````
apt-get install default-mta

Or, for a couple useful utilities as well,

apt-get install mailutils
````

Installed mail-utils with default configuration. Now getting this message:

" your host may have disabled the mail() function…"

There might be some PHP magic required to make that work… from what I gather, PHP's e-mail functionality is somewhat dismal. If you can do this:

echo "this is a test" | mail -s "test subject line" your_real_email_address@example.com

… then the e-mail server itself is working. Try rebooting, just to be sure?