Prerequisites
Before you begin, make sure you have:- A SendKit account with a domain added
- Access to your IONOS account
- Your domain’s DNS records from the SendKit domain detail page
Add DNS records
Log in to IONOS, go to Domains & SSL, click your domain, then select DNS. Click Add Record for each of the following.1. DKIM record
| IONOS field | SendKit value |
|---|---|
| Type | TXT |
| Hostname | sendkit._domainkey |
| Value | Your DKIM value from SendKit |
2. SPF record
| IONOS field | SendKit value |
|---|---|
| Type | TXT |
| Hostname | send |
| Value | Your SPF value from SendKit |
3. MX record
Set the mail server
In the Points to field, paste the MX value from your SendKit domain detail page.
| IONOS field | SendKit value |
|---|---|
| Type | MX |
| Hostname | send |
| Points to | Your MX value from SendKit |
| Priority | 10 |
4. DMARC record (optional)
Verify your domain
Go back to your SendKit domain detail page and click Refresh. IONOS DNS changes typically propagate within a few minutes.If verification doesn’t succeed immediately, wait a few minutes and try again. SendKit also checks automatically in the background.
Troubleshooting
Cannot add TXT records
Cannot add TXT records
Make sure you’re in the DNS section, not the Mail section. IONOS has separate sections for mail configuration and raw DNS records.
Existing MX records on the root domain
Existing MX records on the root domain
The SendKit MX record goes on the
send subdomain, not your root domain. It won’t conflict with IONOS email or any existing MX records on your main domain.