What is 99%+ Deliverability Guide?
Deliverability is determined by domain age, DNS alignment, recipient engagement, and sending pattern consistency.
Always warm up new sending domains gradually: start with 10-20 emails per day and scale up by 15% daily.
Utilize Staurax Mail's built-in `List-Unsubscribe` and `List-Unsubscribe-Post` headers (RFC 8058) to allow one-click unsubscribes without marking emails as spam.
Key Features
RFC 8058 Compliance Headers
Embedded List-Unsubscribe headers meet Google and Yahoo 2026 sender requirements.
Multi-SMTP Load Distribution
Spreads campaign dispatches across multiple mailboxes to avoid daily sending quota flags.
How It Works
1. Authenticate your sending domain with 2048-bit RSA DKIM and SPF records.
2. Warm up new mailboxes gradually over 14 days.
3. Enable RFC 8058 one-click List-Unsubscribe headers in your campaign settings.
Code Example & API Usage
Maximize Your Inbox Placement
Deploy enterprise cold email infrastructure built for 99%+ deliverability.