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Set up DNS at IONOS

Add the eoinbox DNS records to a domain managed at IONOS.

Menus change. IONOS updates its dashboard from time to time, so button and menu names may differ slightly from this guide. Look for the DNS settings of your domain; the records you need are always the same. Your eoinbox dashboard shows the exact values and checks them for you.

Find the DNS settings

  1. Sign in to your IONOS account.
  2. Open Domains & SSL from the menu.
  3. Click the gear icon (or the ... menu) next to your domain and choose DNS.
  4. Click Add record and choose the record type.
TypeName / hostValue / targetPriorityStatus
TXT@eoinbox-verify=<your token>Proves you own the domainRequired
MX@mx1.eoinbox.comReceiving mail10Required
MX@mx2.eoinbox.comReceiving mail (backup)20Required
TXT@v=spf1 include:spf.eoinbox.com ~allSPF, allows us to send for youRequired
CNAMEeo1._domainkeyeo1._domainkey.<id>.dkim.eoinbox.comDKIM signing key 1Required
CNAMEeo2._domainkeyeo2._domainkey.<id>.dkim.eoinbox.comDKIM signing key 2Required
CNAMEeo3._domainkeyeo3._domainkey.<id>.dkim.eoinbox.comDKIM signing key 3Required
TXT_dmarcv=DMARC1; p=none; rua=mailto:<id>@dmarc.eoinbox.comDMARC policy and reportsRecommended
CNAMEmta-stsmta-sts.eoinbox.comMTA-STS policy hostRecommended
TXT_mta-stsv=STSv1; id=<policy id>MTA-STS, enforces TLS for incoming mailRecommended
TXT_smtp._tlsv=TLSRPTv1; rua=mailto:<id>@tlsrpt.eoinbox.comTLS reportingRecommended
CNAMEautoconfigautoconfig.eoinbox.comAutomatic setup in mail appsOptional
CNAMEautodiscoverautoconfig.eoinbox.comAutomatic setup in OutlookOptional
SRV_imaps._tcp0 1 993 mail.eoinbox.comIMAP discoveryOptional
SRV_submissions._tcp0 1 465 mail.eoinbox.comSMTP discoveryOptional
SRV_jmap._tcp0 1 443 mail.eoinbox.comJMAP discoveryOptional

Filling in the form

  • Host name: @ for the domain itself, otherwise the name from the table, such as _dmarc or eo1._domainkey.
  • Points to / Value: the value or target from the table, without quotes.
  • MX: mx1.eoinbox.com with priority 10, and mx2.eoinbox.com with priority 20.
  • SRV: IONOS asks for Service (_imaps, _submissions or _jmap), Protocol (TCP), Host name @, Points to mail.eoinbox.com, Priority 0, Weight 1 and Port.
  • TTL: the default is fine.

Conflicting IONOS mail records

If the domain was used with IONOS email, IONOS has MX records pointing to its own servers (mx00.ionos..., mx01.ionos...) and an SPF record. When you add our MX records, IONOS may warn that existing records will be replaced or that the domain is in use by an IONOS product. Only confirm once you are ready to switch, and after importing any mail you want to keep.

Merge include:spf.eoinbox.com into the existing SPF record instead of creating a second one.