Contacts and groups

The address book supplies suggestions to To, CC, and BCC fields and makes recurring recipients easier to select.

Contacts

• Add, edit, delete, and search contacts by name or email.
• Import addresses found in the latest synchronized message history.
• Preview and import CSV files containing an email header and an optional name header.
• Export the address book as contacts.csv.
• Open a contact to review its source, usage history, and recent related messages.

Imported and manually entered addresses are deduplicated by normalized email address. Repeated imports update non-empty names, usage counts, and the most recent use time instead of creating a second contact.

Groups

Groups have a name, optional description, and selected address-book members. Selecting a group in the composer expands it into all current member addresses. Deleting a group does not delete its contacts.

Configuration

Item	Setting name	Environment variable	Requirement
Contacts	Contacts > Add contact or Contacts > Import from mail	None	No feature-specific configuration.
CSV transfer	Contacts > Import CSV or Contacts > Export CSV	None	Optional.
Groups	Contacts > New group	None	A group name is required; members are optional.

Contacts and groups are stored in PostgreSQL. Importing from mail requires previously synchronized messages but does not contact an external address-book provider.