cant receive mails after upgrade and server switch

[DocSnyd3r]

Ok I found the Problem, but I,m not shure how to solve it. The Problem is that xxx.eu is FQDN and postfix hast myhostname and mydomain also set to xxx.eu. And when ispCP adds a virtual domain xxx.eu the error is that I cannot have xxx.eu in mydestination and virtualhost.
I used this domain as FQDN to have a short admin url admin.xxx.eu and not something like admin.lvps87-230-x-x.dedicated.hosteurope.de what the default would be.

My main.cf

Code:

#
# Some common configuration parameters;
#

inet_interfaces  = all
mynetworks_style = host

myhostname = xxx.eu
mydomain   = xxx.eu
myorigin   = $myhostname

smtpd_banner = $myhostname ESMTP ispCP 1.0 Priamos Managed 1.0.0 RC3 OMEGA
setgid_group = postdrop

#
# Receiving messages parameters;
#

mydestination       = $myhostname, $mydomain
append_dot_mydomain = no
append_at_myorigin  = yes
local_transport     = local
virtual_transport   = virtual
transport_maps      = hash:/etc/postfix/ispcp/transport