Migration Guide
The complete guide to migrating your email sending from SendGrid to dedicated IPs — with full IP warming support, zero downtime, and measurable inbox placement improvements.
Migrating from SendGrid / Twilio SendGrid to Dedicated Infrastructure
SendGrid / Twilio SendGrid is a cloud-based email delivery platform using shared and dedicated IP options. It works well at lower volumes and for teams that want managed sending without infrastructure decisions. But senders who reach a certain scale — or who've experienced blacklisting, shared IP contamination, or deliverability plateaus — find that the lack of IP isolation and control becomes the bottleneck. This guide covers the complete migration process from SendGrid / Twilio SendGrid to dedicated email infrastructure.
Quick facts: SendGrid vs. dedicated infrastructure
| Feature | SendGrid | Cloud Server for Email |
|---|---|---|
| IP type | Shared with thousands | Dedicated — yours only |
| IP reputation control | None — shared pool | Full — isolated per client |
| Blacklist monitoring | Basic or none | 50+ lists, every 4 hours |
| Sending volume visibility | Aggregate only | Per-IP, per-pool detail |
| IP warming | Auto/shared | Guided, per-use-case |
| ISP postmaster access | Limited | Full Postmaster Tools access |
| PowerMTA / Acelle / MailWizz | Not available | Available |
| Custom PTR records | No | Yes — per IP |
Why senders leave SendGrid
The most common reasons senders at 1M–50M emails/month outgrow SendGrid:
- Shared IP deliverability issues even on SendGrid Essentials/Pro plans
- Dedicated IPs on SendGrid are expensive and require manual warm-up without support
- Limited control over MTA configuration and retry behavior
- No access to per-IP Postmaster Tools data on shared plans
- SendGrid's throttling and compliance decisions affect your sending without control
- API limitations for complex routing rules across multiple IP pools
Key benefits after migration
API compatibility
Mailgun-compatible endpoint means your SendGrid SDK integration changes by one line
PowerMTA support
Full PowerMTA deployment available for enterprise sending requirements
Faster warm-up
Dedicated team guides warm-up rather than self-service
Blacklist response
Listings detected and remediated typically within 30 minutes
Migration process: 2–3 weeks
Export suppression lists
Download all bounce, unsubscribe, and spam report lists from SendGrid. The API endpoint is GET /v3/suppression/bounces. Export before any other steps.
Note your SendGrid subuser and IP configuration
Document which sending domains and IP addresses you currently use. You'll recreate this structure on dedicated infrastructure.
Configure dedicated infrastructure
We provision your dedicated IP pools, configure the MTA, and set up reporting dashboards. For SendGrid migrations, we'll configure a SendGrid-compatible endpoint so your existing code works without modification.
Update DNS records
Add new DKIM selectors, update SPF records, maintain your existing DMARC policy. The DNS changes can be made while still sending via SendGrid.
Import suppressions and test
Import all suppression data and send test messages to verify authentication and delivery before beginning the full warm-up.
Execute IP warming
Start with engaged segments. Your account manager provides a day-by-day volume schedule tailored to your list size and engagement profile.
Ready to migrate from SendGrid?
Our team manages hundreds of migrations per year. We'll review your current setup, configure your dedicated infrastructure, and guide your IP warm-up. Most clients see measurable inbox placement improvements within 30 days.