Domain host

Email DNS records at IONOS

Web host and registrar. DNS is edited per domain under Domains and SSL, and CNAME records live on subdomains.

Visit IONOS Sources checked October 21, 2026

Which email provider are you setting up?

For your bare domain, MX: enter @ in Host name; TXT: leave Host name empty; CNAME: leave Host name empty.
For other names, type only the part before your domain (for example _dmarc). IONOS adds your domain automatically.

Select Add record, then the MX section.
Enter @ as Host name, the mail server in Points to, and the Priority. Choose 1 hour for TTL.
Select Save.
If other MX records are listed, delete each one with the Delete record (trash can) icon.

Select Subdomains, then Add subdomain, and enter the record's name (for example autodiscover).
Under Actions for the new subdomain, select the gear icon, then DNS.
Select Add record, then the CNAME section.
Enter the target in the Alias box, tick the I am aware disclaimer if it appears, and select Save.

Tell us your domain and we will add and verify every record for your email, then send you the check results.