How to set up DKIM for Zoho Mail

DKIM signs your outgoing mail with a key only your sender holds, and publishes the matching public key in DNS. It can't be generated by a checker — the key comes from Zoho Mail's console — so this guide walks the console flow and the record you'll publish.

What you'll publish: A TXT record at <selector>._domainkey on your domain. You choose the selector when generating (Zoho's docs use zoho as the example); 1024- or 2048-bit keys.

Steps

1. Open the Zoho Mail Admin Console → Domains → select your domain → Email Configuration → DKIM.
2. Add a selector (e.g. zoho) and generate the key.
3. Publish the shown TXT record at <selector>._domainkey, then Verify in the Admin Console and enable DKIM.

Gotchas

• ⚠GoDaddy, Wix, Squarespace, and Namecheap auto-append your domain — enter only zoho._domainkey as the record name.
• ⚠DKIM isn't supported for domains using Zoho's Email Routing or Outbound Gateways (mail not delivered directly).

Steps verified against Zoho: DKIM configuration on 2026-07-17.