Custom DNS Settings
Complete DNS configuration for email authentication and routing. We manage the complexity so you can focus on sending.
Try 1000 Free Credits →DNS records we help you configure
Sender Policy Framework
# Add to your domain's TXT record
yourdomain.com. TXT "v=spf1 include:spf.outboundsmtp.com ~all"Authorizes OutboundSMTP servers to send on behalf of your domain. We stay within the 10-lookup limit.
DomainKeys Identified Mail
# DKIM public key record
osmtp._domainkey.yourdomain.com. CNAME osmtp._domainkey.outboundsmtp.com.CNAME-based DKIM lets us manage key rotation without requiring you to update DNS records.
Domain-based Message Authentication
# DMARC policy record
_dmarc.yourdomain.com. TXT "v=DMARC1; p=quarantine; rua=mailto:dmarc@yourdomain.com"We help you set up DMARC at the right enforcement level and monitor reports for authentication failures.
We handle the complexity
DNS configuration for email is notoriously error-prone. Our experts handle setup and ongoing management.
DNS Audit
We review your current DNS records, identify conflicts, and assess your authentication posture.
Record Generation
We generate the exact DNS records you need -- SPF, DKIM, DMARC, MAIL FROM MX, and PTR.
Guided Publishing
We walk you through publishing records at your DNS provider, or work directly with your DNS team.
Validation
We verify every record resolves correctly and test authentication end-to-end before you go live.
Ongoing Monitoring
We monitor your DNS records for propagation issues, TTL expiration, and configuration drift.
Full DNS record support
MX Records
Configure MX records for custom MAIL FROM bounce handling. Route bounce messages back to your domain for processing.
CNAME Records
CNAME-based DKIM for easy key management. We handle rotation and updates without requiring DNS changes on your side.
A/AAAA Records
Configure IP address records for custom tracking domains and branded link rewriting. IPv4 and IPv6 support.
TXT Records
SPF, DMARC, and domain verification TXT records. We ensure correct syntax and help resolve conflicts with existing records.
PTR Records
Custom reverse DNS for dedicated IPs. Proper PTR records are critical for deliverability and ISP trust.
SRV Records
Service discovery records for advanced configurations, SMTP autodiscovery, and multi-site email routing.
DNS questions
Do I need to give you access to my DNS provider?
No. We provide the exact records you need to publish and guide you through the process. If you prefer, we can work directly with your DNS team or managed DNS provider.
What if I already have SPF records from other email providers?
We add an additional include mechanism to your existing SPF record. Our team ensures the combined record stays within the 10-lookup limit and resolves any conflicts.
How long does DNS propagation take?
DNS changes typically propagate within 15 minutes to 48 hours, depending on your DNS provider and TTL settings. We verify propagation before activating your sending and advise on optimal TTL values.
Let us handle your DNS
White-glove DNS setup included with every plan. Start with 1,000 free credits.