Google Workspace receives mail for 2,507 of 9,971 popular domains we measured in November 2026. Below: the records it needs and how its customers actually set them.
| Host | Priority |
|---|---|
smtp.google.com | 1 |
Domains set up before 2023 may still use the older five-record set (aspmx.l.google.com priority 1, alt1/alt2.aspmx.l.google.com priority 5, alt3/alt4.aspmx.l.google.com priority 10); Google still supports it.
Add include:_spf.google.com to the domain's single SPF record, for example:
v=spf1 include:_spf.google.com -all1775 of 2507 Google Workspace customers in our sample (70.8%) have this include in their SPF record.
TXT record at google._domainkey.<domain> (selector "google" by default, can be changed when generating the key in the Admin console).
Publish a TXT record at _dmarc.<domain> once SPF and DKIM pass for all mail you send, start with p=none and a reporting address, then move to p=quarantine or p=reject:
v=DMARC1; p=reject; rua=mailto:dmarc-reports@<domain>Official documentation: MX · SPF · DKIM · DMARC
Provider site: https://workspace.google.com/
2,507 customer domains in the sample (accent bars) compared with all 9,971 measured domains (grey bars).
The highest-ranked domains in the sample whose MX records point to Google Workspace.
Check one yourself:
Customer-specific parts replaced by <domain> and digits by <n>.
| MX host pattern | Domains |
|---|---|
aspmx.l.google.com | 2128 |
alt<n>.aspmx.l.google.com | 2118 |
aspmx<n>.googlemail.com | 961 |
smtp.google.com | 382 |
lt<n>.aspmx.l.google.com | 2 |
alt<n>.aspmx.l.google.comalt<n>.aspmx.l.google.com | 1 |
alt<n>.aspmx.l.googlemail.com | 1 |
Source: our own scan of November 2026 (2026-11-11), 9,971 of the top 10,000 domains of the Tranco list Y895G that answered in DNS. Method and data.