If I set up email forwarding, e.g.,
john@domain1 -> mary@domain2
*@domain3 -> peter@domain4
1. Does the forwarded email actually PASS THROUGH my server (and so count towards my traffic quota)?
2. Is there any way for the incoming mail to be automatically forwarded to the correct destination WITHOUT it passing through my server?
3. Does it make any difference if the forwarding setup uses virtual domains (as discussed, for example, in Falko's Virtual Users And Domains With Postfix, Courier And MySQL...)?
Thankyou for your help.