When using OVH as our domain hoster, how many SPF records can I use and, more generally, is there a limit to how many DNS records I can use ?
Hi
For a domain hoster like OVH, the limit on SPF records is governed by the standard Google Cloud and Workspace protocols.
- How many SPF records can I use?
You can use exactly one SPF record per domain.
If you create multiple records starting with v=spf1, receiving mail servers will likely face a PermError and reject your emails. If you use multiple services (e.g., Google Workspace + an external tool), you must combine them into a single TXT record.
Official Google References
- Google Workspace Admin Help: “You can have only one SPF record for a domain. If you have more than one SPF record, your domain can’t be verified.”
- Google Cloud DNS Documentation: “An SPF record is a TXT record that starts with v=spf1. Only one SPF record can be active for a domain at a time.”
Key Technical Limits (Google Documented)
- DNS Lookups: The single record cannot exceed 10 DNS lookups (mechanisms like include, a, and mx count toward this).
- Character Limit: A single TXT record string is limited to 255 characters (RFC 1035).
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Okay, I thought so, thank you very much for the confirmation !
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