# DKIM record for Hostinger Email

URL: https://iblockspam.com/dkim/hostinger-email
Last updated: 2026-11-03

Record type: CNAME
Selectors: hostingermail-a, hostingermail-b, hostingermail-c
Key managed by: Provider (CNAME delegation)

Hostinger Email's default DKIM setup is three CNAME records: `hostingermail-a._domainkey`, `hostingermail-b._domainkey` and `hostingermail-c._domainkey`, pointing to `hostingermail-a.dkim.mail.hostinger.com` and its `-b` and `-c` counterparts. Hostinger keeps the keys. On Hostinger nameservers, Connect automatically in hPanel adds them for you.

## DNS records

- Selector hostingermail-a (CNAME, host hostingermail-a._domainkey): `hostingermail-a.dkim.mail.hostinger.com`
- Selector hostingermail-b (CNAME, host hostingermail-b._domainkey): `hostingermail-b.dkim.mail.hostinger.com`
- Selector hostingermail-c (CNAME, host hostingermail-c._domainkey): `hostingermail-c.dkim.mail.hostinger.com` For a subdomain such as shop.example.com, Hostinger uses hosts like `hostingermail-a._domainkey.shop` with the same targets.

## Set it up and turn on signing

- In hPanel, open **Emails**, click **Mailboxes** next to the account and choose **Domain settings** to see the DKIM records Hostinger expects.
- If the domain's nameservers point to Hostinger, click **Connect automatically** and you're done.
- If they point elsewhere, delete any existing DKIM records for Hostinger at that DNS host first, then add the three CNAMEs above.
- Enter only `hostingermail-a._domainkey` in the host field, without trailing dots, spaces or capital letters, at hosts that append your domain.
- Return to Domain settings to check the status. Hostinger says new records can take a few hours, and up to 24 hours, to work.

## DMARC alignment

All three selectors are published under your own domain's `_domainkey` name, so once they resolve, a receiver verifies Hostinger's signature against a key tied to your domain, which is what DMARC needs for an aligned DKIM pass. Hostinger's records cover mail sent through Hostinger Email only: for a newsletter tool or website plugin that sends through another service, Hostinger says to use that sender's own DKIM record instead of the defaults.

## Key length and rotation

With three CNAMEs pointing into `dkim.mail.hostinger.com`, the keys themselves live in Hostinger's zone, so Hostinger can replace a key there without asking you to touch your DNS. Its help articles don't state a key length or a rotation schedule, and they don't say which of the three selectors signs at a given time, so publish all of them.

## Common mistakes

- **Entering the records as TXT.** Hostinger says its DKIM records must be CNAMEs; a TXT record or a typo can break signing.
- **A doubled domain.** Some DNS providers append your domain to the host, turning `hostingermail-a._domainkey` into `hostingermail-a._domainkey.example.com.example.com`.
- **Leftover DKIM records.** Hostinger asks you to delete existing DKIM records before adding the defaults at an outside DNS host.
- **Adding records at the wrong provider.** They only count where the domain's nameservers point; otherwise hPanel keeps showing the domain as not connected.

**Q: Do I need all three Hostinger DKIM CNAME records?**
Yes. Hostinger's default DKIM setup lists `hostingermail-a`, `hostingermail-b` and `hostingermail-c` together, and its articles don't say any of them is optional. Add all three so whichever selector signs your mail resolves.

**Q: How do I set up Hostinger DKIM for a subdomain?**
Add the subdomain to the host part of each record. For shop.example.com, Hostinger's example uses `hostingermail-a._domainkey.shop`, `hostingermail-b._domainkey.shop` and `hostingermail-c._domainkey.shop`, with the same targets as for the main domain.

**Q: Can I use Hostinger's DKIM records for mail sent by a third-party service?**
No. They sign only mail sent through Hostinger Email. Hostinger says to use a custom DKIM record from the third-party sender instead, so that sender's mail is signed with a key it controls.

Sources:
- Hostinger Help: What are the DKIM records for Hostinger Email?: https://www.hostinger.com/support/4456413-what-are-the-dkim-records-for-hostinger-email/
- Hostinger Help: Set up a domain for Hostinger Mail manually: https://www.hostinger.com/support/8671319-set-up-a-domain-for-hostinger-email-manually/
- Hostinger Help: Set up domain for Hostinger Mail: https://www.hostinger.com/support/8650765-set-up-a-domain-for-hostinger-email/

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Source: iBlockSpam, https://iblockspam.com/dkim/hostinger-email (this is a Markdown copy; the HTML page is canonical). Quote with attribution and a link. Site index for AI assistants: https://iblockspam.com/llms.txt