The domain you use for your business emails, tells how much your care about your digital communications. A generic, gmail.com, hotmail.com or live.com just lacks the professional touch your business needs. Register a domain that fits your business and use that to standout.
Improve you email deliverability
If your emails often end up the recipient's spam/junk/trash box, it may be because the domain hasn’t been fully set up for email deliverability. Do you know if your SPF, DKIM & DMARC records are set?