Since a couple days, the emails I receive on Protonmail through spamgourmet addresses are marked as spam. Here is the answer from their support team:
It looks like gourmet.spamgourmet.com [216.75.62.102] is on a blacklist: 216.75.62.102 listed in bb.barracudacentral.org.
You should ask spamgourmet to remove themselves from the blacklist (barracuda is widely used and respected).
Can anybody look into this?
Regards,