A clarification on my part on this subject, because there seems to be some confusion. Disclaimer: this is not an official statement from Swisscom.
Swisscom is phasing out mail services which were running on old former cybernet mail servers. This includes outbound mail ("smtp.cybernet.ch", "smtp.swisscomdata.ch") as well as inbound mail (mailbackup, spam filter services).
For outbound mail, a new mail cluster has been taken into service, and yes, this is running on new ip ranges. But these are in the same ball park as the long existing bluewin mail servers, _not_ 46.14.*.*, which are IP addresses assigned to customers. I'm not in charge of these servers, so unfortunately I can't give you the concrete IP addresses. Just shows once more, that SPF is broken by design.
Inbound services are separate, and customers of these have been informed individually.
Cheers, Markus