[postfix-users] Fwd: Re: Forwarding Loop?

[christian.flothmann at xabbuh.de]

Hallo,

> Wir mappen per virtual_alias_maps eine neue Domain auf die alte Domain um:
> 
> @neuedomain @altedomain

wobei du dabei auch aufpassen musst, da so alle E-Mails für alle
Empfänger in neuedomain angenommen werden, auch wenn diese in altedomain
gar nicht existieren:

              Note:  @domain  is a wild-card. With this form, the
              Postfix SMTP server accepts mail for any  recipient
              in  domain,  regardless  of  whether that recipient
              exists.  This may turn  your  mail  system  into  a
              backscatter  source: Postfix first accepts mail for
              non-existent recipients and then  tries  to  return
              that  mail  as  "undeliverable" to the often forged
              sender address.

s. http://www.postfix.org/virtual.5.html

Gruß
Christian