If your emails end up in recipients' spam folders, the cause is often missing SPF, DKIM or DMARC. These three DNS settings prove that messages really come from you.
What each one does
| Setting | What it does |
|---|---|
| SPF | States which servers are allowed to send email for your domain. |
| DKIM | Adds a digital signature to each message so the recipient can check it was not altered. |
| DMARC | Tells recipients what to do with messages that fail the SPF/DKIM checks. |
If your domain and email are on Blue Mint Plesk
- Log in to Plesk and open Mail > Mail Settings.
- Select the domain and turn on DKIM signing for outgoing mail. Save.
- In Websites & Domains > DNS Settings, check that there is a TXT record starting with
v=spf1, as well as the DKIM record. - If there is no DMARC record, add a TXT record named
_dmarc. A gentle start is the valuev=DMARC1; p=none, which only monitors and does not reject messages.
If you also use another sending service
If you also send email from other services (e.g. a newsletter or OX App Suite), the SPF record must include all of them. The domain must have only one SPF record. Each service gives you the values it needs.
Tips
- DNS changes take a little time to apply.
- If your nameservers point elsewhere, the records go there. See Managing DNS records.
- Only set a stricter DMARC policy once you are sure all your legitimate mail passes the checks.
Need help? Open a support ticket and we will help you.
