for others curious what this feature is: https://www.fastmail.help/hc/en-us/articles/1500000279721-Shared-Contacts https://www.fastmail.help/hc/en-us/articles/

for others curious what this feature is: https://www.fastmail.help/hc/en-us/articles/1500000279721-Shared-Contacts https://www.fastmail.help/hc/en-us/articles/1500000279721-Sh... > Sharing contacts is an easy way to let all users in an account have access to common address book entries. > Businesses can share their corporate directory easily. Families can share contact information of extended family members.