Update mail-postfix.sh
Update mail-postfix.sh

Updated according to Josh's latest reaction. Sounds good.
ianberinger/mailinabox,m4rcs/mailinabox,m4rcs/mailinabox,Neopallium/mailinabox,mail-in-a-box/mailinabox,Neopallium/mailinabox,Neopallium/mailinabox,Neopallium/mailinabox,mail-in-a-box/mailinabox,d5ve/mailinabox,nstanke/mailinabox,Neopallium/mailinabox,mail-in-a-box/mailinabox,mail-in-a-box/mailinabox,ianberinger/mailinabox,m4rcs/mailinabox,ianberinger/mailinabox,nstanke/mailinabox,d5ve/mailinabox,m4rcs/mailinabox,nstanke/mailinabox,ianberinger/mailinabox,m4rcs/mailinabox,nstanke/mailinabox,d5ve/mailinabox,ianberinger/mailinabox,nstanke/mailinabox,d5ve/mailinabox,d5ve/mailinabox