If you hate subscriptions, you can buy Outlook as a perpetual license. This means you pay once and own that specific version (e.g., Outlook 2021) forever, though you won't get major feature updates.
: Available for approximately $159.99 for just the Outlook application. how do i buy outlook
: For professional use, Microsoft 365 Business starts at roughly $6.00/user/month. 2. Standalone One-Time Purchase If you hate subscriptions, you can buy Outlook