According to the Courier FAQ I can use: @sitharus.com: sitharus to forward everything @sitharus.com to the local user sitharus.
No, that's not what the FAQ says. It says:
@domain.com: localuser
Here, any mail address <[EMAIL PROTECTED]> will be redirected to the local address <localuser-foo>. Note, the address is <localuser-foo>, not --------------------
<localuser>.
------------
The rest of the paragraph explains what you need to do.
pgp00000.pgp
Description: PGP signature
