Trust
Customers connect the domain with your company name. A free address can raise doubt, especially on invoices and quotes.
Ownership and continuity
When an employee leaves, their mailbox and correspondence stay under company control and can be handed to someone else without losing customers.
Deliverability
- SPF: lists the servers allowed to send on your behalf.
- DKIM: a signature proving the message wasn’t altered.
- DMARC: a policy for what happens to forged messages using your name.
Common options
Google Workspace and Microsoft 365 are the most popular, with calendar and document apps. The choice depends on the tools your team already uses.