High-Volume Email Optimization
Optimized queue processing, parallel execution, and API-based delivery that sends 1 million personalized emails in 25 minutes.
Get StartedThe Challenge
Default Mautic sends emails one by one — painfully slow for large campaigns
Campaigns crash or time out with large contact lists
SMTP transport creates a hard ceiling on throughput
No parallel processing means wasted server capacity
Our Solution
API-Based Transport
SendGrid/Mailgun API instead of SMTP — 50-100x faster per worker.
Parallel Workers
Up to 52 parallel queue consumers processing batches simultaneously.
Custom SQS Transport
S3 payload offloading overcomes AWS queue size limitations.
Intelligent Deduplication
Real-time deduplication across batches and workers ensures no duplicate sends.
Our Process
Performance Audit
Performance Audit
Measure current throughput, identify bottlenecks in your email pipeline.
Architecture Design
Architecture Design
Design the optimal worker count, queue topology, and delivery integration.
Implementation
Implementation
Deploy parallel workers, configure API transport, optimize database.
Load Testing
Load Testing
Stress test with production-scale volumes to verify throughput targets.
Frequently Asked Questions
How fast can Mautic send emails after optimization?
With our advanced architecture, we achieved 40,000 emails/minute — 1 million personalized emails in 25 minutes.
Do I need to change my email provider?
Switching from SMTP to an API-based provider (SendGrid, Mailgun, SES) is the single highest-impact change. We can help migrate.
Will this affect deliverability?
Properly configured, API-based sending actually improves deliverability. We maintain dedicated IPs and monitor sender reputation.
Ready to Get Started with High-Volume Email Optimization?
Let's discuss your project. Free 30-minute consultation with a Mautic expert.
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