Bulk Email Infrastructure

Scale

Built for High Volume

Our infrastructure handles your largest campaigns without breaking a sweat.

99.9%

Uptime SLA

10M+

Emails/day capacity

<100ms

API response time

50+

Global IPs

Scalable Architecture

YOUR APP

API Calls

→

LOAD BALANCER

Traffic Control

→

MTA CLUSTER

10+ Servers

→

IP POOL

50+ IPs

Features

Enterprise Features

Everything you need to send at scale with confidence.

⚖️

Automatic Load Balancing

Traffic automatically distributed across servers and IPs to prevent overload and maintain consistent delivery.

🔄

Auto-Failover

If a server or IP has issues, traffic routes automatically to healthy resources. Zero downtime.

📊

Real-Time Analytics

Track delivery, bounces, complaints, and engagement in real-time. Custom dashboards for your metrics.

🛡️

DDoS Protection

Enterprise-grade security with rate limiting, IP allowlisting, and threat detection built in.

🔌

REST API

Full API access for sending, analytics, and management. Webhooks for real-time event processing.

📝

Custom Tracking Domain

Use your own domain for open/click tracking to maintain brand consistency.

FAQ

Frequently Asked Questions

What is bulk email infrastructure?

Bulk email infrastructure refers to the technical systems needed to send large volumes of email (100k+ monthly) reliably. This includes multiple dedicated IPs, load balancing across servers, automated bounce handling, real-time analytics, and compliance tools.

How many emails can I send per month?

CloudMails infrastructure scales to millions of emails per month. Our Enterprise plans offer unlimited sending, while lower tiers have progressively higher limits. We handle volume spikes automatically.

What is email load balancing?

Load balancing distributes email volume across multiple servers and IPs to prevent overload and maintain consistent deliverability. If one server has issues, traffic automatically routes to healthy servers.

How do you handle bounces?

CloudMails automatically classifies bounces as hard (invalid address, remove immediately) or soft (temporary, retry up to 5 times). All bounces are suppressed from future sends and tracked in real-time analytics.

What happens if I exceed my volume limit?

If you approach your plan limit, we notify you. Overages are billed at per-thousand rates or you can upgrade to a higher tier. We never silently drop emails - you always know your status.

Do you support API integration?

Yes, all CloudMails plans include REST API access. You can send emails, manage templates, track analytics, and control IP rotation programmatically. Full documentation and SDKs available.