Got a new modem : Fritz!Box 7581
Remote access did not worked automatically,
so I configured port forwarding 32400 in the Fritzbox settings manually.
All seems good but,
Having enabled Push Service on the Fritzbox
(The FRITZ!Box Push Services send e-mail messages at regular intervals or when certain events occur)
I got lots of Change Notice emails of New Port Sharing
The marked out red part of the number behind Plex-Media-Server--iMac-van-Xxx-Xxxxx is different every time.
Is this normal behavior or is something wrong?