const MICROSOFT_CONSUMER_DOMAINS: &[&str];Expand description
Outlook.com’s own domains, those of personal Microsoft accounts: the list
Thunderbird’s ISPDB gives (autoconfig.thunderbird.net/v1.1/outlook.com,
read 13 October 2026), but for its exchangers’ domain,
olc.protection.outlook.com, which microsoft_mx_kind knows. Exact names only.