API Development & Systems Integration

SMS & Email Gateway Integration

Integrate transactional SMS and email into your applications with DLT-compliant templates, authenticated sending domains and delivery tracking, so important messages reach inboxes.

Overview

Why it matters
for your business.

OTP codes that arrive late, invoices landing in spam and SMS blocked for non-compliant templates all create support calls and lost trust. In India, commercial SMS must follow TRAI’s DLT rules, and email providers now demand proper domain authentication. We integrate SMS and email gateways into your applications so transactional messages are delivered reliably and compliantly.

For SMS, we help you register as a principal entity on a DLT platform, obtain sender IDs and get templates approved, then connect your application to a gateway with fallback options. For email, we configure SPF, DKIM and DMARC, separate transactional and marketing streams and build branded templates. Delivery events flow back into your system, so your team can see whether a message actually arrived.

What's included

  • DLT registration, sender ID and template approval
  • SMS gateway integration with fallback routing
  • Email domain authentication with SPF, DKIM, DMARC
  • Responsive transactional email templates
  • Delivery and bounce event tracking
  • Message logs searchable by your support team
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Outcomes

What changes
for your business.

Ideal for

  • Apps relying on OTP logins and alerts
  • Businesses sending invoices and statements
  • Platforms facing DLT template rejections

Reliable OTP delivery

Properly registered templates and fallback routing help one-time passwords arrive when users need them.

Better inbox placement

Authenticated sending domains make it less likely your invoices and alerts land in spam.

Visible message status

Support staff can confirm whether a specific message was delivered before escalating a complaint.

How we deliver

A clear, accountable
process.

Every engagement follows the same disciplined approach, adapted to the size and urgency of your project.

  1. 01

    Discover

    We map your workflows, users and integrations, then agree scope, priorities and milestones.

  2. 02

    Design

    User flows, interface designs and architecture are reviewed with you before development starts.

  3. 03

    Build

    Short sprints with working demos, code reviews and testing, so you see progress every step.

  4. 04

    Launch & support

    We deploy, train your team, hand over documentation and stay on for support and enhancements.

Ways to work with us

  • Fixed-price projectsDefined scope, milestones and deliverables.
  • Time & materialFlexible delivery based on actual effort and resources.
  • Dedicated teamsAssigned engineers, testers or marketers for ongoing work.
  • Annual maintenance contractsScheduled maintenance and support agreements.

FAQ

Common
questions.

Something else on your mind? Ask us directly.

What is DLT registration and do we need it?

DLT is the distributed ledger system mandated by TRAI for commercial SMS in India. Businesses must register their entity, sender IDs and message templates with a telecom operator’s DLT platform before sending. Without it, messages are blocked. We guide you through registration and template approval.

Should we use the same service for marketing and transactional email?

We recommend separating them, either through different providers or separate subdomains and IP pools. Marketing campaigns attract more complaints and unsubscribes, which can affect reputation. Keeping transactional mail such as invoices and password resets on its own stream protects its deliverability.

Let's talk about SMS & Email Gateway Integration.

Tell us what you need and get a clear plan and proposal, free and with no obligation.

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