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SESMetric

Email that always lands. Campaigns your AI agent runs.·sesmetric.com

SESMetric is a transactional email platform offering SMTP relay, a REST API, and a native MCP server so AI agents like Claude, ChatGPT, or Cursor can send mail and run marketing campaigns. Transactional sends (password resets, receipts, alerts) and AI-written marketing campaigns run on separate delivery pools so promotional traffic never affects transactional deliverability. It includes ready-made system templates, real-time event tracking, contact segmentation, and DKIM/SPF/DMARC setup out of the box.

What it's for

sending transactional emails such as password resets, receipts, and alertsrunning AI-generated marketing email campaigns and drip sequencestracking email events (opens, clicks, bounces, complaints) in real timemanaging contacts and behavior-based segmentsverifying sending domains and configuring DKIM/SPF/DMARCexporting historical delivery data to a data warehouse

Features 19

35+ ready-to-send system email templates sent by slug
AI-written marketing campaigns generated from a prompt, including drip sequences
Contacts, segments, and drip sequences with behavior-based targeting
Dedicated delivery pool isolating marketing traffic from transactional reputation
DKIM + SPF + DMARC auto-configuration
Domain verification with automatic DNS polling
Email validation API
Historical CSV export with no quota
Idempotent retries via replay-safe Message-ID
Native MCP server for AI agents (37 tools spanning transactional and campaign lifecycle)
Open and click tracking with per-user/per-domain off-switch
Per-email status timeline (sent → delivered → opened → clicked/bounced/complained)
Real-time event dashboard for sends, opens, clicks, bounces, and complaints
REST API mirroring SES SendRawEmail
Role-based team access with per-teammate API keys
Signed HMAC webhooks per event with retry/backoff
SMTP relay on ports 2525/465/587
Suppression list for hard bounces and complaints
Unlimited sending domains on paid plans

At a glance

free tierAPI

TypeWeb app

DeploymentCloud

PlatformsWeb

Fordevelopers, engineering teams

CompanyFinketech OPC Pvt Ltd · 2018

Integrations

ClaudeChatGPTCursornodemailerDjangoRails

Complianceself-reported

SOC 2 Type IIGDPRISO 27001CCPA

Resources

Docs

Pricing

Annual plan lists at $1,188/year but is billed at $999/year, described as a 16% saving.

FreeFree

No credit card required.

100 emails/day, 1 sending domain

Monthly$99/mo

Cancel any time.

1M emails/month

Annual$83.25/mo · billed annually

Billed at $999/year instead of the $1,188 list price (two months free); cancel any time.

1M emails/month

Annual billing saves $189 versus paying monthly (two months free).