Email Deliverability That Keeps Your Campaigns Out of Spam
Your emails took time to write. They deserve to be seen. Mailsend's deliverability infrastructure is built from the ground up to land every send in the inbox - not the spam folder.
How Mailsend Guarantees Inbox Placement
Automatic SPF, DKIM & DMARC
Mailsend configures all domain authentication records automatically. No DNS headaches - just paste two records and you're authenticated.
Dedicated IP Addresses
Your sending reputation is yours alone. No shared IP pool contamination from other senders. Available on Pro and Scale plans.
Domain Warm-Up Tool
New to email marketing? Mailsend's warm-up tool gradually increases your sending volume over 2-4 weeks to establish a strong sender reputation with every major ISP.
Real-Time Reputation Monitoring
We monitor your domain and IP reputation across all major blacklists (Spamhaus, Barracuda, SURBL) and alert you instantly if anything changes.
Smart Bounce Management
Hard bounces are automatically suppressed after the first occurrence. Soft bounces are retried intelligently. Your list stays clean without manual effort.
Complaint Feedback Loop
Mailsend is enrolled in Gmail, Yahoo, and Outlook feedback loops. Spam complaints auto-suppress that subscriber - protecting your reputation before damage is done.
Deliverability vs The Competition
How Mailsend compares on the features that actually affect inbox placement.
| Feature | Mailsend | Mailchimp | SendGrid |
|---|---|---|---|
| DKIM/SPF Auto-Setup | ✅ Automatic | ⚠️ Manual | ⚠️ Manual |
| Dedicated IPs | ✅ All paid plans | 💰 Enterprise only | 💰 Add-on cost |
| Domain Warm-Up | ✅ Built-in tool | ❌ Not included | ❌ Not included |
| Blacklist Monitoring | ✅ Real-time alerts | ❌ No | ⚠️ Basic |
| Spam Complaint FBL | ✅ Gmail + Yahoo + Outlook | ⚠️ Partial | ✅ Yes |
| Bounce Suppression | ✅ Automatic | ✅ Yes | ✅ Yes |
Deliverability FAQ
What is email deliverability?
Email deliverability is the ability of an email to successfully reach the recipient's inbox rather than the spam folder. It depends on your sender reputation, domain authentication (SPF, DKIM, DMARC), list health, and content quality.
How does Mailsend improve my email deliverability?
Mailsend handles SPF/DKIM/DMARC setup automatically, offers dedicated IP addresses, monitors your sender reputation in real-time, manages bounces and unsubscribes automatically, and provides a domain warm-up tool for new senders.
What are SPF, DKIM, and DMARC?
SPF (Sender Policy Framework) verifies which mail servers are allowed to send email for your domain. DKIM (DomainKeys Identified Mail) adds a cryptographic signature to your emails. DMARC tells receiving servers what to do if SPF or DKIM checks fail. Together, they authenticate your emails and protect your sender reputation.
What is a dedicated IP address and do I need one?
A dedicated IP address is an IP used only by your domain for sending email. This means your reputation is entirely under your control - no shared pool contamination. For high-volume senders (100k+ emails/month), a dedicated IP is strongly recommended.
How do I warm up a new email domain?
Domain warming is the gradual process of increasing your sending volume to build sender reputation with ISPs. Mailsend's built-in domain warm-up tool automatically schedules and manages this process for you.
Your emails belong in the inbox.
Start with Mailsend's built-in deliverability infrastructure - no extra setup required.