Every email.
Every inbox.
Enterprise-grade infrastructure backed by 12 years of Ecomail operations. Guided DNS setup, dedicated IPs, and first-party domain control from day one.
Deliverability Score
Inbox Placement
Based on authentication, reputation, and infrastructure health. Backed by the same infrastructure serving 12,000+ organizations for over 12 years.
DNS authentication
All your email authentication records in one place. Guided setup with real-time verification.
v=DKIM1; k=rsa; p=MIGfMA0G...v=spf1 include:spf.lettr.com ~allv=DMARC1; p=quarantine; rua=mailto:dmarc@lettr.comtracking.lettr.comBlocklist monitoring
Continuous scanning across major blocklists. Get alerted the moment something changes.
DKIM & SPF Setup
Guided setup for email authentication records. Lettr generates and validates your DKIM keys and SPF records automatically.
DMARC Monitoring
Receive and parse DMARC aggregate reports. See who is sending email on your behalf and detect unauthorized senders.
Dedicated IPs
Get your own dedicated sending IP with full reputation control. Warm up automatically and monitor your sender score over time.
Suppression Lists
Automatically suppress bounced addresses, complaints, and unsubscribes. Protect your sender reputation by never hitting bad addresses twice.
Blocklist Monitoring
Continuous monitoring across major blocklists. Get alerted immediately if your sending IPs or domains appear on any blocklist.
First-Party Domain Control
Custom tracking domains and hosted asset domains from day one. Links and open tracking come from your domain, not a third party — rare among competitors at this price point.
3,000 emails/month free. No credit card required.