Why SPF Breaks After Adding One More Email Provider Your SPF record may look valid and still produce a PermError . This often happens after connecting one more service: Google Workspace Microsoft 365 Mailchimp Zendesk a CRM a support platform Each include: can trigger additional DNS lookups. SPF allows no more than 10 DNS-triggering mechanisms during one evaluation. A simple-looking record v=spf1 include:_spf.google.com include:servers.mcsv.ne...