High-Speed Transactional Email & Express Lane Delivery
Guaranteed inbox delivery in under 2 seconds. Hybrid connectivity via SMTP Relay (Port 587) and modern REST API for OTP, 2FA, password resets, checkout verifications, and mission-critical notifications.
Sub-Second Telemetry for Mission-Critical Transactional Email
Track throughput, Express Lane dispatch latency, and inbox placement metrics in a clean, distraction-free interface crafted for developers and product engineering teams.
The 3 Biggest Nightmares of Transactional Email
When critical emails fail to arrive, users cannot access your software, abandon their checkouts, and flood your customer support queue.
Lost Password Reset Links
Users attempt to reset credentials or verify account activation, but the email vanishes into the spam folder. The immediate outcome is user churn and frustration.
OTP Tokens Stuck Behind Blasts
Legacy providers that mix bulk marketing broadcasts with transactional traffic. A 50,000-contact promotional blast delays urgent 2FA codes by 15 minutes.
Unpredictable Rates & Slow Support
Overseas vendors charging fluctuating foreign currencies with hidden surcharges, accompanied by slow asynchronous ticket support that takes days to resolve IP throttling.
How MailerWeb V2 Ensures Instant Inbox Delivery
Purpose-built engineering that isolates transactional traffic ahead of any other platform workload.
Multi-Lane Queue with Express Lane
Absolute traffic isolation. Transactional messages travel through an autonomous priority lane without contending with promotional marketing campaigns.
- ✓Strict priority queue: Express > Standard > Bulk
- ✓Sub-2-second dispatch guaranteed
- ✓Automated anti-stall watchdog monitoring
Hybrid Connectivity: SMTP Relay + REST API
Integrate your stack in under 3 minutes. Native support for industry-standard SMTP credentials and modern JSON-powered REST APIs.
- ✓SMTP Relay on Port 587 with enforced STARTTLS
- ✓REST API authenticated via Bearer Tokens
- ✓Compatible with WooCommerce, Shopify, VTEX, Laravel, and Django
Reputation Shield & Pre-Warmed IPs
Safeguard your domain sender reputation across Gmail, Microsoft Outlook, Yahoo, and corporate mail exchangers with cryptographic authentication.
- ✓Guided wizard for SPF, 2048-bit DKIM, and DMARC alignment
- ✓Dedicated IP pools with automated progressive warm-up
- ✓Intelligent instant suppression of hard bounces
Integrate in Minutes with Any Language or Tech Stack
Zero heavy dependencies or intricate configurations. Use standard SMTP or make direct REST API calls in seconds.
SMTP Relay (Plug & Play)
Connect any app, e-commerce store, or legacy system in under 3 minutes by switching your standard SMTP settings:
REST API (cURL / JSON)
Dispatch transactional messages with lane controls, dynamic templates, and metadata via our RESTful JSON API:
Why Choose MailerWeb Over Legacy Providers?
Compare infrastructure speed, predictable costs, and responsive technical support between MailerWeb and traditional vendors.
| Technical & Operational Criteria | MailerWeb V2 | SendGrid / Postmark | AWS SES (Raw) |
|---|---|---|---|
| Transparent Pricing | Predictable, transparent rates with no surprise markups | USD foreign currency + variable surcharges | Complex AWS bandwidth metering |
| Dedicated Express Lane | Priority multi-lane queue architecture (< 2s latency) | Shared pools contending with marketing blasts | Single queue without SLA tiering |
| Live Expert Support | Dedicated chat & WhatsApp support with real engineers | Slow asynchronous email tickets across timezones | Community forums only without support plans |
| Hybrid Protocol | SMTP Relay (587) + REST API JSON | SMTP and REST API | Proprietary AWS SDK or basic SMTP |
| Reputation Shielding | Automated SPF, DKIM (2048-bit), DMARC, and bounce suppression | Requires tedious manual setup | Complex DNS verification via Route53 |
| Developer Telemetry | Real-time visual monitoring dashboard with live metrics | Developer-focused portal without business telemetry | Complicated CloudWatch log inspection |
Fair Pricing: From $0.35 to $0.45 per 1,000 Emails via Wallet or Packages
No surprise fees or exchange rate fluctuations. Use prepaid credits in your digital Wallet or purchase volume packages in the dashboard. For enterprise volumes (> 250k/month) or Dedicated IPs with guided warm-up, talk to our sales team.
Direct Impact on User Conversion and Security
Rapid dispatch across our Express Lane for OTP and resets
Emails landed directly in the primary user inbox
High availability backed by enterprise SLA standards
Frequently Asked Questions About Transactional Email
Q:What distinguishes transactional email from bulk marketing blasts?
Transactional messages are individual, urgent, and triggered by specific user interactions (e.g. 2FA tokens, order confirmations, or password resets). In MailerWeb, these critical messages travel through our isolated Express Lane and never wait behind promotional marketing broadcasts.
Q:Can I connect MailerWeb to WordPress, WooCommerce, or Shopify?
Absolutely. You can plug your application in under 3 minutes by configuring our SMTP Relay credentials (Host: smtp.mailerweb.com.br, Port: 587) within your platform settings or standard SMTP plugin.
Q:How does IP isolation and sender reputation work?
We maintain pre-warmed, high-reputation IP pools monitored 24/7. For operations sending over 100,000 monthly emails, dedicated IP addresses with guided automated warm-up regimens are readily available.
Q:How can I track delivery events and bounces?
We provide real-time webhooks delivering HTTP POST payloads for each event (delivered, opened, clicked, bounced, or complaint), accompanied by granular visual logs in your control panel.
Ensure Your Critical Emails Land in Under 2 Seconds
Eliminate deliverability worries and deliver verification tokens and receipts straight to your customer's inbox.