Reputation-first transactional email infrastructure.

Verified sending domains, enforced suppressions, domain throttles, and clear message logs — so your product emails stay reliable as you scale.

Built for B2B SaaS teams that need reliable transactional email, clear logs, and deliverability guardrails from day one.

Get Started How it works
Dependal

Built for production teams — designed to protect sender reputation.

  • Send via API or SMTP

    Use clean REST endpoints or standard SMTP for transactional email with predictable responses and message-level visibility.

  • Suppressions built in

    Hard bounces and complaints are suppressed automatically to protect sender reputation and reduce repeat failures.

  • Clear delivery logs

    Track message lifecycle events with structured logs so your team can answer what happened to an email quickly.

API
Suppressions
Events

Deliverability hygiene, without the drama

Dependal focuses on the boring-but-critical controls: enforced suppressions, predictable limits, and audit-grade visibility.
So your product emails remain reliable under real workloads.

Visibility

Clear logs per message ID

Every send can be traced end-to-end, so “did it send?” becomes a quick answer, not a support ticket.

Protection

Suppression hygiene by default

Hard bounces and complaints are suppressed automatically to protect deliverability from day one.

Predictable

Guardrails by default

Hard quotas, per-recipient and per-domain limits, and automated suppression — designed to prevent deliverability incidents.

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Production-minded
Our Story

Email infrastructure, without the chaos.

Dependal is built around what teams hit in production: retries, bounces, complaints, suppression rules, and “what happened to this email?” questions.

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Core Features

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Event logs

Structured message logs across the delivery lifecycle, including send, bounce and complaint events.

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Quotas & limits

Guardrails for demo keys and tenants to prevent abuse and protect deliverability.

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Controlled integration

Designed for transactional workflows with explicit APIs, SMTP support, and predictable production behaviour.

Use Cases

For the emails your product can’t afford to fail.

  • Password resets & OTP
  • Receipts & invoices
  • Alerts & notifications
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Integrations

Works with your auth stack

Use Dependal for transactional emails from the tools your product already relies on.

Supabase

Use Dependal for auth and product emails with clearer logs and better operational visibility.

View integration

Clerk

Send authentication and account emails through Dependal with SMTP-based integration.

View integration

Firebase Auth

Route transactional auth email through Dependal while keeping message visibility and controls.

View integration

Custom apps

Integrate directly over REST API or SMTP from your own backend, workers, and internal systems.

View docs

Predictable pricing for production email

Get started for free (1k/month), then scale with predictable pricing and limits

Fair usage & guardrails
Plans include built-in deliverability guardrails (rate limits, suppressions, and retry hygiene). If usage patterns risk deliverability (spikes, complaints, repeated bounces), sending is automatically slowed or paused — with clear logs and guidance to recover safely.
Read FAQs

Frequently asked Questions

Quick answers on sending, suppressions, integrations, and what’s available today.

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Is Dependal built for production use?
Yes. Dependal is built for production transactional email with verified domains, suppressions, limits, SMTP support, and clear message logs.
Do you automatically suppress hard bounces?
Yes. Hard bounces and complaints are suppressed by default to protect deliverability.
Do you support SMTP integrations like Supabase or Clerk?
Yes. Dependal supports direct API usage as well as SMTP-based integrations for authentication and product email workflows.
Do you support marketing campaigns?
Not right now. Dependal is focused on transactional email first (password resets, receipts, alerts).
How do I contact you?
support@dependal.com

Resources for production teams

Guides for deliverability, logging, and integrating Dependal into real production systems.

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Deliverability
Deliverability

Suppressions: keeping your sender reputation clean (coming soon)

Coming soon·5 min read
Events
Events

Event model & message IDs (coming soon)

Coming soon·6 min read
Reliability
Reliability

Retries & idempotency (coming soon)

Coming soon·6 min read

Start sending reliably

Get set up with a starter plan and grow into production as you scale.

Get Started