GDPR Compliance

Last updated: 2025-01-24

TenguMail is committed to protecting your privacy and complying with the General Data Protection Regulation (GDPR). This page explains how we handle your personal data and what rights you have. For our full privacy practices, see our Privacy Policy.

Who we are

Data Controller: TenguMail

Contact Email: privacy@treetank.net

Location: Poland / European Union

We act as the Data Controller for personal data we collect directly from you when you use TenguMail. This means we determine why and how your personal data is processed.

When you use TenguMail to process emails from other people, you may be the Data Controller for that data, and we act as your Data Processor.

What data we collect and why

Data typePurposeLegal basisRetention
Account data
Email, password hash, name
Account creation and authenticationContractUntil account deletion
Email credentials
IMAP/SMTP host, username, password
Connecting to your email serverContractUntil config deletion
Email content
Subject, body, attachments
Processing by AI pipelinesContractNot stored (real-time only)
Pipeline configuration
Prompts, tools, agent settings
Providing the automation serviceContractUntil pipeline deletion
Conversation history
Chat messages with AI agents
Maintaining conversation contextContract90 days (server)
Execution logs
Pipeline runs, errors, timing
Debugging and troubleshootingLegitimate interest90 days
Security logs
Login attempts, IP addresses
Fraud prevention, securityLegitimate interest30 days
Payment records
Transaction IDs, invoices
Billing, legal requirementsLegal obligation7 years
Marketing preferences
Newsletter subscription
Product updates, tipsConsentUntil withdrawal

Legal basis for processing

Under GDPR, we need a legal basis to process your personal data. Here is what we rely on:

Contract performance (Article 6(1)(b))

Most of our processing is necessary to provide you with the service you signed up for:

  • Creating and managing your account
  • Processing your emails through AI pipelines
  • Storing your IMAP credentials to connect to your email server
  • Executing your configured automations
  • Processing payments and sending invoices

Legitimate interests (Article 6(1)(f))

Some processing is based on our legitimate interests, balanced against your rights:

  • Security monitoring and fraud prevention (protecting all users)
  • Maintaining execution logs for debugging when things go wrong
  • Service improvement based on aggregated usage patterns
  • Browser fingerprinting for session security

We have conducted balancing tests to ensure our interests do not override your rights.

Legal obligation (Article 6(1)(c))

Some processing is required by law:

  • Maintaining financial records for tax purposes (7 years)
  • Responding to valid legal requests from authorities

Consent (Article 6(1)(a))

We ask for your consent for optional processing:

  • Marketing communications (you can unsubscribe anytime)

You can withdraw consent at any time through your account settings or by contacting us.

Your rights under GDPR

You have the following rights. We have tried to make them easy to exercise - most can be done directly from your account settings.

Right of access (Article 15)

You can request a copy of all personal data we hold about you.

How to exercise:

  • Go to Settings > Account > Export Data
  • Or use our API endpoint: /api/auth/gdpr-export
  • Or email privacy@treetank.net

Right to rectification (Article 16)

You can correct any inaccurate personal data.

How to exercise:

  • Update your profile in Settings > Account
  • Update email configurations in Settings > Email
  • If you cannot change something yourself, email us

Right to erasure (Article 17)

You can request deletion of your personal data, subject to certain exceptions (like legal retention requirements for payment records).

How to exercise:

Note: After initiating deletion, there is a 14-day grace period during which you can cancel. After that, all your data is permanently and irreversibly deleted (cascade delete of all related records).

Right to data portability (Article 20)

You can receive your data in a structured, machine-readable format.

How to exercise:

  • Go to Settings > Account > Export Data
  • You will receive a JSON file containing all your data
  • This includes: account info, configurations, pipelines, execution history

Right to object (Article 21)

You can object to processing based on legitimate interests.

How to exercise:

  • Email privacy@treetank.net explaining your objection
  • We will stop processing unless we have compelling legitimate grounds
  • To stop a specific pipeline from processing, you can disable it in Pipelines

Right to restrict processing (Article 18)

You can ask us to restrict how we use your data while we address a concern.

How to exercise:

Right to withdraw consent

Where we rely on consent, you can withdraw it at any time without affecting the lawfulness of processing before withdrawal.

How to exercise:

  • For marketing emails: use the unsubscribe link in any email
  • For other consents: use Settings or email us

Right to lodge a complaint

If you are unhappy with how we handle your data, you can complain to your local supervisory authority.

Supervisory authorities:

We would appreciate a chance to address your concern first - please email us at privacy@treetank.net.

Response times

We will respond to your request within 30 days. If your request is complex, we may extend this by up to two months, but we will let you know within the first 30 days.

International data transfers

TenguMail is based in Poland (European Union) and our primary servers are located in the EU. However, when you use AI features, your email content may be sent to third-party AI providers located in the United States.

Third partyPurposeLocationSafeguards
OpenAIAI email processingUSAStandard Contractual Clauses
AnthropicAI email processingUSAStandard Contractual Clauses
Google (Gemini)AI email processingUSAStandard Contractual Clauses
LemonSqueezyPayment processingUSAStandard Contractual Clauses

About Standard Contractual Clauses (SCCs)

SCCs are legal contracts approved by the European Commission that ensure your data receives equivalent protection when transferred outside the EU. All our US-based providers have signed SCCs and are committed to protecting your data according to EU standards.

You control which AI provider processes your emails. You can configure your preferred LLM provider in Settings > LLM. If you prefer to keep your data within the EU, you can use EU-hosted models when available, or self-host compatible models.

How we protect your data

We implement appropriate technical and organizational measures to protect your data. For full details, see our Security Overview.

  • Encryption at rest: All sensitive data (credentials, API keys) encrypted with AES-256-GCM
  • Encryption in transit: TLS 1.3 for all communications
  • Per-user encryption: Each user's credentials encrypted with derived keys
  • Access controls: Role-based access, audit logging of admin actions
  • Data isolation: Strict tenant separation - users cannot access each other's data

Data breach notification

In the event of a personal data breach that is likely to result in a risk to your rights and freedoms, we will:

  • Notify the relevant supervisory authority (UODO) within 72 hours of becoming aware
  • Notify affected individuals without undue delay if the breach poses a high risk
  • Document all breaches, their effects, and remedial actions taken

Contact us

For any questions about GDPR compliance or your data rights, please contact us:

Privacy inquiries: privacy@treetank.net

General support: support@treetank.net

Based on the nature and scale of our data processing, we are not required to appoint a Data Protection Officer. For privacy inquiries, please contact us at the email above.

Related policies

Changes to this page

We may update this page to reflect changes in our practices or legal requirements. Significant changes will be communicated via email and through the service.


Adapted from Basecamp's open-source policies, used under CC BY 4.0.