To let Zoho Mail send as you, add include:zohomail.com to your SPF.
On the domain you send from. Zoho also documents include:one.zoho.com for organisations that use several Zoho services, to avoid SPF lookup failures. Measured on 5 Nov 2026, the include costs 2 of your 10 SPF lookups, leaving 8 for everything else.
- Include
- zohomail.com
- Vendor’s record
- v=spf1 include:zohomail.com -all
- Where it goes
- Your domain’s SPF record (@)
- Needed on your root?
- Yes, if you send through it from your domain
- Lookups (measured)
- 2 of 10
- Ranges published
- 8 ip4 · 0 ip6
- Category
- Mailbox provider
What include:zohomail.com expands to live, 5 Nov 2026
v=spf1 include:spf.zohomail.com -all
Counted as RFC 7208 §4.6.4 does: the include itself plus every nested include, a, mx, ptr, exists and redirect. Includes can change at any time; this page re-measures daily.
Adding it next to another service
A domain has exactly one SPF record, so add the include to the record you already have. With Google Workspace, for example:
v=spf1 include:_spf.google.com include:zohomail.com ~all
DKIM for Zoho Mail
A TXT key at <selector>._domainkey; you choose the selector when you add it in the Zoho Mail Admin Console (Domains → Email Configuration → DKIM).
How it affects DMARC
DMARC passes when SPF or DKIM passes for a domain aligned with your From address. With Zoho Mail sending from your domain, its include lets SPF pass and align; DKIM signing with your domain gives you a second, forwarding-proof way to pass.
Other mailbox provider services
Sources
- Zoho Mail: SPF configuration · checked 5 Oct 2026
- Zoho Mail: DKIM configuration · checked 5 Oct 2026
- RFC 7208 §4.6.4: DNS lookup limits · checked 5 Oct 2026
peekip isn’t affiliated with Zoho Mail; follow the vendor’s own setup page, which shows the exact values for your account.