Registrar guide
Adding MX Records in Google Domains / Squarespace DNS
MX points receiving mail servers. Use your provider’s exact hostnames and priorities. Squarespace DNS does not proxy MX.
Example row
Type: MX
Host name: @
Mail server: aspmx.l.google.com
Priority: 1
TTL: Auto
Check MX everywhere
Open Propagation checker →Step by step
Step 1 Navigate to domains.squarespace.com → your domain → DNS.
Step 2 Click Add record → MX.
Step 3 Set Host name to @ for inbound mail to your domain.
Step 4 Enter the mail server hostname from your provider (not an IP).
Step 5 Set priority exactly as documented (lower number = higher preference where applicable).
Step 6 Repeat for every MX your provider requires.
Step 7 Use DomainPreflight Propagation — MX — to confirm all resolvers match.
FAQ
How many MX rows do I need?
Whatever your provider documents — Google often lists five; Microsoft 365 might use one.
What priority should I use?
Your provider’s numbers — don’t invent new priorities unless their docs say so.
My mail broke after editing MX in Google Domains / Squarespace — why?
Wrong hostnames, wrong priorities, or (on Cloudflare) orange-cloud proxy. Fix DNS-only for MX.
MX hostname or IP?
Hostname — receivers expect a name that resolves in DNS.
How do I verify?
DomainPreflight Propagation with type MX on your apex domain.