MailPulse Relay Engine
MailPulse 2.0 Multi-SMTP Delivery Engine

Deliver Millions of Emails with Zero Relay Bottlenecks

Connect multiple SMTP gateways (SendGrid, Amazon SES, Mailgun, Postfix) to distribute campaigns dynamically with smart failover, quota throttling, and precision tracking.

99.8%
Inbox Deliverability
10x
Throughput Speed
0ms
Queue Disruption
Multi-SMTP
Auto Failover
mailpulse.app/dashboard • Multi-Relay Gateway Active
Dispatching at 4,200 msg/min
Emails Sent Today
148,200
99.8% Delivered
Open Rate
42.8%
63,429 Unique Opens
Click-Through
18.4%
27,268 Click Events
Bounce Suppression
0.02%
Auto-Filtered List
Active SMTP Load Balancer Distribution Dynamic Weighted Round-Robin
SendGrid Relay A 100% OK
15,000 / 15,000 daily cap
Amazon SES Relay B 100% OK
50,000 / 50,000 daily cap
Mailgun Dedicated C 100% OK
25,000 / 25,000 daily cap
Architecture

Engineered for High Deliverability & Redundancy

Traditional email platforms lock you into one single IP pool. MailPulse allows you to distribute campaign volume across unlimited relays with zero downtime.

Smart Relay Load Balancing

Split large volume campaigns automatically across multiple sender domains and SMTP gateways to maintain high sender reputation and evade spam filters.

Automated Bounce Suppression

Hard bounces and spam complaints are instantly blacklisted across all tenant campaigns, ensuring full CAN-SPAM and GDPR compliance.

Granular Quota Control

Enforce daily and monthly sending limits per customer account with automated midnight timezone resets and instant quota diagnostic overrides.

Interactive Estimator

Calculate Your Deliverability & Cost Savings

See how much you save by routing through dedicated SMTP relays compared to traditional email marketing vendors.

Monthly Email Volume: 100,000 emails / mo
10,000 250,000 500,000 1,000,000+
MailPulse Cost
$64/mo
Includes Multi-SMTP Engine
Traditional Vendor
$380/mo
Standard single-IP vendor
Estimated Annual Savings
$3,792/yr
83% Cost Reduction
Transparent Subscriptions

Simple, Predictable Plans for Every Stage

Choose the bandwidth and relay gateway count that matches your growth. Upgrade, downgrade, or cancel anytime.

Starter Plan

Essential Dispatch

For early-stage startups & developers launching outbound campaigns.

$29 / month
Billed monthly
25,000 emails / month quota
2,000 emails / day limit
2 Connected SMTP relays
Real-time open & click tracking
Standard CSV list import & tags
Get Started with Starter
Most Popular Choice
Growth / Pro Plan

High-Volume Scale

For growing marketing teams sending regular automated newsletters.

$79 / month
Billed monthly
100,000 emails / month quota
10,000 emails / day limit
5 Connected SMTP relays with load balancing
Visual drag-and-drop HTML template builder
Automated bounce suppression blacklist
Priority queue worker allocation
Start 14-Day Pro Trial
Scale / Enterprise

Maximum Throughput

For high-throughput SaaS companies and enterprise marketing agencies.

$199 / month
Billed monthly
500,000+ emails / month quota
50,000 emails / day limit
Unlimited SMTP gateways & relays
Dedicated IP warm-up schedule automation
Advanced Webhook & REST API access
24/7 dedicated account manager & SLA
Deploy Enterprise Scale
Social Proof

Trusted by High-Growth SaaS & Outbound Teams

"Routing through three Amazon SES relays and one SendGrid backup boosted our Gmail inbox placement by 28%. We reduced our SaaS email bills by over $1,100 each month."

SJ
Sarah Jenkins
Head of Growth, GrowthFlow

"The admin customer account management feature allows us to provision sub-accounts for our clients with strict daily bandwidth limits and allocated SMTP servers."

DV
David Vance
Technical Director, InnovateLabs

"The automated bounce suppression and real-time open and click heatmaps gave us complete visibility into audience behavior without needing third-party analytics."

MC
Marcus Chen
Co-founder, Vortex Analytics
Questions & Answers

Frequently Asked Questions

How does Multi-SMTP load balancing work?

MailPulse allows you to register multiple SMTP credentials (such as SendGrid, Amazon SES, Mailgun, or your own Postfix servers). When a campaign dispatches, the queue dispatcher routes batches dynamically across active relays according to hourly and daily limits, providing seamless failover if one gateway experiences throttling.

Can an Administrator manage customer accounts and allocate relays?

Yes. Administrators have full multi-tenant control via the Customer & Account Management portal to create accounts, adjust daily limits, change subscription plans, assign dedicated SMTP relays, and temporarily suspend or reactivate tenants.

How are daily limits and monthly quotas reset?

Daily counters automatically reset at midnight in the application's configured timezone (Asia/Kolkata). Administrators can also manually reset daily or monthly counters at any time with a single click in the diagnostic console.

Can I send emails without connecting my own SMTP immediately?

Yes. When an administrator provisions an account or when a customer signs up, a default system SMTP relay is automatically allocated so customers can test and send emails right away through the Direct Mailer or Campaign builder.

Ready to Upgrade Your Email Deliverability?

Join high-growth marketing teams and SaaS providers. Set up your multi-SMTP relay infrastructure in under 2 minutes.