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Lettr Logo

Cloud-based transactional email API for artisans

Table of Contents

Lettr - 2026 Pricing, Features, Reviews & Alternatives

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Last updated: February 2026

Lettr overview

What is Lettr?

Lettr is a transactional email platform that helps teams send and manage product and lifecycle emails without running their own email infrastructure. It supports both HTTP API and SMTP relay, so developers can integrate quickly and choose the delivery method that best fits their stack.

Lettr includes real-time webhooks and reporting across the email lifecycle, including accepted, delivered, delayed, bounced, opened, and clicked events. Teams can inspect message-level activity and use retained logs to troubleshoot delivery issues, bounces, or performance changes.

Templates are managed in a visual editor designed for collaboration. Developers set up the integration once, then product, design, and marketing teams can update transactional templates with version history and a draft/publish workflow—reducing dev tickets and avoiding redeploys for routine content changes. Lettr supports dynamic placeholders, multi-language templates, and HTML import for migrations.

For deliverability and brand control, Lettr supports custom domains for tracking links and hosted assets, plus standard sending domain configuration. Enterprise options include dedicated IP pools and custom rate limits.

Key benefits of using Lettr

• API + SMTP delivery options: Use HTTP API or SMTP relay depending on your system architecture and workflow.
• Real-time webhooks & events: Track delivery and engagement with lifecycle events (delivered, bounced, delayed, opened, clicked) and stream them to your systems.
• Built-in analytics & logs: Diagnose issues with message-level visibility and retained logs for debugging and auditing.
• Visual template editor for teams: Edit transactional templates without touching HTML, with version history and a safe draft/publish workflow. Perfect for marketing and product teams.
• Template portability: Dynamic placeholders, multi-language templates, and HTML import support long-term maintainability and migration.
• Deliverability & brand control: Custom tracking and asset domains (not shared vendor domains), plus standard domain configuration.
• Enterprise controls: Dedicated IP pools and custom rate limits for higher-volume senders.

Starting price

15usage based /
per month

Alternatives

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Lettr’s user interface

Ease of use rating:

Lettr reviews

Overall rating

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No reviews

Rating breakdown
  • Value for money
  • Ease of use
  • Features
  • Customer support
  • Likelihood to recommend0.00/10
Rating distribution

5

4

3

2

1

0

0

0

0

0

Lettr's features

AI copilot
Autoresponders
Email templates
Event triggered actions
Reporting/Analytics
Simple mail transfer protocol (smtp)
Template management

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Lettr logo

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Lettr pricing

Pricing plans

Pricing details:

Free plan
Free trial
Subscription

Pro

15

Per month

Features included:

  • Email API & SMTP
  • Advanced Analytics
  • 30-Day Data Retention
  • No Dedicated IPs

Business

110

Per month

Features included:

  • Email API & SMTP
  • Advanced Analytics
  • 30-Day Data Retention
  • Dedicated IPs (add-on, not included by default)
  • Priority Support
  • Dedicated Account Manager
  • Deliverability Consultation

Enterprise

Empty state illustration for "No pricing info"

No pricing info

Features included:

  • Email API & SMTP
  • Advanced Analytics
  • 90-Day Data Retention
  • Dedicated IP Addresses included
  • Dedicated Account Manager
  • SLA Guarantee
  • SSO / SAML (To Be Announced)

User opinions about Lettr price and value

Value for money rating:

Lettr integrations (4)

Lettr support options

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Platforms supported

Web
Android
iPhone/iPad

Support options

Email/Help Desk
24/7 (Live rep)
FAQs/Forum
Knowledge Base
Chat

Training options

Documentation
Live Online
Videos

Lettr FAQs

Q. Who are the typical users of Lettr?

Lettr has the following typical customers:
Freelancers, Large Enterprises, Mid Size Business, Small Business

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Q. What languages does Lettr support?

Lettr supports the following languages:
English


Q. Does Lettr offer an API?

Yes, Lettr has an API available for use.


Q. What level of support does Lettr offer?

Lettr offers the following support options:
Email/Help Desk, 24/7 (Live rep), FAQs/Forum, Knowledge Base, Chat

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