doveadm backup -v -u xenadmin@meinekleinefarm.net remote:mail.mgs-ullrich.de
 
doveadm -v -o imapc_host=hostname -o imapc_port=993 -o imapc_ssl=imaps -o imapc_ssl_ca_dir=/etc/ssl -o imapc_ssl_verify=yes -o imapc_master_username=masteruser -o imapc_password=password -o imapc_username=xenadmin@meinekleinefarm.net backup -R -u xenadmin@meinekleinefarm.net imapc:
 
doveadm -v -o imapc_host=192.168.223.10 -o imapc_port=993 -o imapc_ssl=imaps -o imapc_ssl_verify=no -o imapc_master_username=master -o imapc_password=XXX -o imapc_username=xenadmin@meinekleinefarm.net backup -R -u xenadmin@meinekleinefarm.net imapc:
 
doveadm -v -o imapc_host=192.168.223.10 -o imapc_port=993 -o imapc_ssl=imaps -o imapc_ssl_verify=no -o imapc_master_user=dovecot-master -o imapc_password=XXX -o imapc_username=xenadmin@meinekleinefarm.net backup -R -u xenadmin@meinekleinefarm.net imapc:
 
doveadm -v -o imapc_host=192.168.223.10 -o imapc_port=993 -o imapc_ssl=imaps -o imapc_ssl_verify=no -o imapc_password=XXX -o imapc_username=xenadmin@meinekleinefarm.net backup -R -u xenadmin@meinekleinefarm.net imapc: