Where to edit SPF

SPF is a TXT record on the apex of your domain (yourdomain.com), published in DNS Zone Editor when nameservers point to this hosting.

How to add or fix SPF

1. Open DNS Functions → DNS Zone Editor and select your domain.
2. Look for an existing TXT record starting with v=spf1. If more than one SPF TXT exists, delete extras and merge into a single record (multiple SPF records break authentication).
3. If none exists, Add a TXT record: Name/Host @ (or blank / yourdomain.com depending on the editor). Value example shape: v=spf1 a mx include:linux2.server.ind.in ~all — use the exact include/ip4 values from your IT Monteur welcome email or support.
4. Save the zone. Wait for DNS TTL/propagation (often 5–60 minutes).
5. Send a test message to Gmail or Outlook.com and check that Authentication-Results shows spf=pass. If mail still bounces with SPF fail, open a ticket with the bounce text.

SPF rules of thumb

• One SPF TXT only per domain.
• If you also send via Microsoft 365, Google Workspace, or a marketing ESP, merge their include: into the same SPF string — do not add a second SPF TXT.
• Prefer ~all (softfail) while testing; move to -all only when all legitimate senders are listed.