Don't hide email address for unknown or spoofed contacts

Expected behavior

If I receive an email from someone (or when someone else is also in the To or Cc header), then their full email address should be shown so it can be verified, unless it is in my contacts.

For example, if the sender on an email is "prime-minister@gov.au" <badactor@malware.com>, or "Dad" <badactor@malware.com> this should be shown in full.

Actual behaviour

The label of the email address is always shown if present.

For example, if the sender on an email is "prime-minister@gov.au" <badactor@malware.com> or "Dad" <badactor@malware.com> this is currently shown as "prime-minister@gov.au" or "Dad".

Mail app

Mail app version: 1.4.0

Mailserver or service: Dovecot

Server configuration

Operating system: Debian 10

Web server: Apache

Database: MariaDB

PHP version: Whatever comes with Debian 10

Nextcloud Version: 19.0.0

Client configuration

Browser: GNOME Web 3.36.2

Operating system: Ubuntu 20.04

No file or test is named. First reproduce the behavior in the Mail app using a message with a misleading display name and a different address, then trace the email-address rendering entry point. Done means unknown or spoofed senders and recipients show their full address, while contacts may still use their saved label.