Google Workspace MX Records
[1], aspmx.l.google.com
[5], alt1.aspmx.l.google.com
[5], alt2.aspmx.l.google.com
[10], alt3.aspmx.l.google.com
[10], alt4.aspmx.l.google.com
Google TXT SPF record
v=spf1 include:_spf.google.com ~all
Name : ghs.google.com