IONOS Domain Email Setup 2026

Step-by-step IONOS email setup tutorial. Free custom domain email with SMTP access. Works with Gmail Send Mail As feature.

  • Written byForward Email Team
  • Published9/1/26
  • Time to readLess than 5 minutes
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Go to IONOS

Step 1

Go to IONOS → log in → DNS settings
→ scroll down to Step 2

Go to IONOS
Not Completed

Step 2

Add these records to yourdomain.com: and click Verify
(Scroll to the right to see entire table)
Name/Host/AliasTypePriorityAnswer/Value
"@", ".", or leave empty/blank if allowed.MX0mx1.forwardemail.net
"@", ".", or leave empty/blank if allowed.MX0mx2.forwardemail.net
"@", ".", or leave empty/blank if allowed.TXTEdit user@gmail.com to your email:forward-email=user@gmail.com
Need a TTL value? Make it as close to 3600 (60 minutes) as possible.
Need to configure more aliases on the free plan?
See Options A to G in our FAQ
Verify
Notice of Non-Affiliation and Disclaimer: We are not affiliated, associated, authorized, endorsed by, or in any way officially connected with IONOS, or any of its subsidiaries or its affiliates. The name IONOS as well as related names, marks, emblems, and images are registered trademarks of their respective owners.

Send emails with your IONOS domain

Read our IONOS email setup guide to send email with your custom domain name and alias.

Send email with IONOS domain

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