Authenticating your sending domain tells inbox providers like Gmail and Outlook that your emails are legitimate. It is required to use a custom from address and significantly improves deliverability.
Adding a domain
1. Go to Email API → Domains in your dashboard
2. Click Add Domain
3. Enter your root domain (e.g. yourdomain.com)
4. The dashboard generates a 2048-bit RSA DKIM key pair and shows the three DNS records to add
Required DNS records
SPF
Field | Value |
Type | TXT |
Host | @ (root domain) |
Value | v=spf1 include:psrp.out.convertnow.co ~all |
📌 If you already have an SPF record, add include:psrp.out.convertnow.co to it rather than creating a second TXT record.
DKIM
Field | Value |
Type | TXT |
Host | convertnow._domainkey |
Value | v=DKIM1; k=rsa; p=<your-public-key> (shown in the dashboard) |
DMARC (recommended)
Field | Value |
Type | TXT |
Host | _dmarc |
Value | v=DMARC1; p=none; rua=mailto:[email protected] |
Verifying
Once DNS records are in place, click Check DNS on the domain card.
🟢 Verified — both SPF and DKIM records are valid
🟡 Pending DNS — one or both records are missing or do not match yet
DNS propagation can take anywhere from a few minutes to 48 hours.
Verify API response
{
“spfVerified”: true,
“dkimVerified”: false,
“details”: {
“spf”: “Valid”,
“dkim”: “No DKIM record found at convertnow._domainkey.yourdomain.com”
}
}