Mailboxes aren't part of hosting plans, and phas doesn't run a mail server. Any email provider works with a domain at phas. Your domain stays here; only the mail records point at the provider.
Already have one? Keep it. Nothing about phas needs you to change.
Our shortlist
| Provider | Pick it if |
|---|---|
| Microsoft 365 | you use Word, Excel or Outlook |
| Google Workspace | you use Gmail |
| Fastmail | you just want email |
| Proton Mail | privacy comes first |
If you only need an address on your domain delivered to an inbox you already have, free forwarding does that with no provider at all. See Free email forwarding.
Adding a provider to your domain
Every provider gives you a short list of records during setup: MX
records for delivery, a TXT record to verify the domain, and usually
SPF, DKIM and DMARC records. Add each one in the zone under DNS,
exactly as the provider shows it. Each record is checked when you save it.
Providers usually see the records within the hour. Rather we did it? Open
a ticket.
Forwarding and a provider on the same domain
A domain delivers mail to one place. If forwarding is on, turn it off
before adding the provider's MX records. The provider can then forward
or alias addresses itself.
Switching providers later
Set up the new provider, add its records over the old ones, and keep the old account open for a week while mail settles. Your website doesn't change: mail records and web records are separate.