How to Authenticate Your Domain Name on Infomaniak

If your domain’s DNS is managed at Infomaniak (Swiss registrar/host), you authenticate it for systeme.io email by adding three CNAME records and one TXT (DMARC) record in the Infomaniak DNS zone. Official help article 3942 documents the steps—including Infomaniak’s Source / Target labels and the trailing dot on CNAME targets.

This guide is for email sending authentication, not for connecting a sales funnel (that uses article 3944 under Custom Domain).

• Active systeme.io account.
• Domain with DNS hosted at Infomaniak.
• Access to Infomaniak Manager.
• Domain entered in systeme.io without www.
• An active site on the domain when required for email auth—see general domain authentication.

1. Log in to systeme.io.
2. Settings → Emails.
3. Start domain authentication.
4. Enter your domain without www → Save.
5. Status shows Pending until DNS is correct.
6. Refresh if needed → click the eye icon for 3 CNAME + 1 TXT.

Example CNAME pattern (your values differ):

• si942517 → inbound.systeme.io
• systemeio1._domainkey → key1.systeme.io
• systemeio2._domainkey → key2.systeme.io

1. Log in to Infomaniak Manager.
2. Open your domain.
3. Go to DNS zone or DNS records (sidebar).
4. Click Add a record (or equivalent) for each row from systeme.io.

Repeat for each of the three CNAME lines:

1. Type: CNAME.
2. Source: paste from systeme.io—prefix only (e.g. si942517, not si942517.yourdomain.com if Infomaniak appends the zone).
3. Target: paste the target from systeme.io and append a period (.) at the end (e.g. inbound.systeme.io., key1.systeme.io., key2.systeme.io.). This trailing dot is required on Infomaniak per article 3942.
4. Click Save / validate.

Expected layout (examples):

• Source: si942517 — Target: inbound.systeme.io.
• Source: systemeio1._domainkey — Target: key1.systeme.io.
• Source: systemeio2._domainkey — Target: key2.systeme.io.

1. Add a record → Type: TXT (Infomaniak may also offer a DMARC preset—either works if values match).
2. Source: _dmarc (as shown in systeme.io).
3. Target: paste the full DMARC string, e.g. v=DMARC1; p=none; rua=mailto:you@yourdomain.com—replace the placeholder with your real email.
4. Save.

Keep only one _dmarc record—duplicate DMARC TXT rows break validation.

How to Add a DMARC Record on Infomaniak (article 3943)

1. Wait for DNS propagation (often minutes; up to 48 hours).
2. Return to Settings → Emails on systeme.io.
3. Confirm Pending → Verified.
4. Confirm your sender email address on the same domain.

• Trailing dot: Missing dot on CNAME targets is a common reason records fail on Infomaniak.
• Mail on Infomaniak: If you use Infomaniak Mail, keep MX records intact; email-auth CNAMEs are additive for systeme.io sending.
• Do not confuse records: Funnel CNAMEs (CloudFront from Custom Domain) differ from email CNAMEs—do not overwrite one with the other.
• DKIM hostnames: Paste systemeio1._domainkey and systemeio2._domainkey exactly in Source—no extra domain suffix if the panel auto-appends.

Trailing dot?

Yes on CNAME Target values for Infomaniak.

Source field?

Host prefix only (si942517, systemeio1._domainkey).

Where in Infomaniak?

Domain → DNS zone → Add a record.

Funnel vs email?

Different systeme.io settings and CNAME targets.

DMARC?

Source _dmarc, full policy in Target.

• How to Authenticate Your Domain Name for Email Sending
• How to Connect Your Infomaniak Domain to systeme.io
• How to Add a DMARC Record on Infomaniak
• How to Improve Your Email Deliverability

Authenticate at Infomaniak with Source/Target and trailing dots, then send from systeme.io with a verified domain.