Forwarded email from Ziggo to icloud email addresses not arriving
As of Saturday 12:00 CET my ziggo email that I have set to forward to my icloud email addresses does not make it to icloud.
Any other mail sent directly from my ziggo addresses will also not arrive.
Any mail sent from ziggo to other domains (so not me.com/icloud.com) has no issues, and arrives almost instantly.
It seems the ziggo email domains somehow got blacklisted or something.
Ideas anyone?
iMac, OS X El Capitan (10.11.1), Mail