When does Affinity auto-create contacts? – Affinity Help Center

Affinity auto-creates contacts for you so you can focus on the more important things. Here are the ways in which Affinity auto-creates contacts:

When an internal (you or your team members) sends an email to externals (non-team members), Affinity will auto-create the externals as contacts.
When an external (who is already a contact) sends an email to internals and other externals (who are not already contacts), Affinity will auto-create the externals as contacts.
When an external (who is not already a contact) sends an email to one or more internals and at least one external who is already a contact in Affinity, Affinity will auto-create the other external as a contact.
When an external (who is not already a contact) sends an email to an internal and the internal replies, Affinity will auto-create the external as a contact.

Affinity will not auto-create contacts for any cold inbound emails that you receive for the first time and choose not to respond to. We treat these as spam contacts to prevent the creation of unwanted contacts.
Affinity requires First and Last names to be associated with the external contacts' email addresses when auto-creating contacts.
- If no first and last names are found, then you must manually create contacts with their first and last names included in order to sync past and future interactions into Affinity.
East Asian characters are currently not supported at this time, which also may explain why you don't see external contacts with East Asian characters being auto-created despite your interactions with them.
Affinity will not auto-create contacts that have "generic" prefixes to email addresses. These addresses include "no-reply@", "help@", "info@", "hello@ "etc.