Best practice for DMARC, DKIM, and SPF when hosting DNS and web, but email is at gsuite

verdon

Well-Known Member
Nov 1, 2003
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Northern Ontario, Canada
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Root Administrator
I'm getting more and more clients where the mail is being hosted on Google Apps or Outlook or Fastmail, etc, while I am hosting DNS and web. In these cases, what's the best practice for mail related records in DNS?

1) I've changed the SPF record to look something like this
Code:
v=spf1 include:_spf.google.com ~all
2) I think I have to then get someone to login to the mail provider dashboard and generate the DKIM key, that I then use in the DNS zone on my server

3) Then wait 48 hours and add a DMARC record to the DNS zone, even just a fairly open policy

Does that seem sensible?