Effective Date: October 4, 2026
Last Updated: October 4, 2026

Mail Penguin respects your privacy and is committed to protecting the personal information of our website visitors, customers, users, subscribers, and other individuals whose information may be processed through our services.

This Privacy Policy explains how Mail Penguin collects, uses, stores, shares, and protects personal information when you visit mailpenguins.com, create or use a Mail Penguin account, communicate with us, or interact with email campaigns sent through the Mail Penguin platform.

By using Mail Penguin, you acknowledge the practices described in this Privacy Policy.

1. Information We Collect

The information we collect depends on how you interact with Mail Penguin.

Information You Provide to Us

We may collect information you voluntarily provide, including:

• Name
• Business or organization name
• Email address
• Telephone number
• Mailing or business address
• Account login information
• Billing and transaction information
• Customer support communications
• Information submitted through website forms
• Account preferences and settings

We may also collect other information you choose to provide when communicating with us or using the Mail Penguin platform.

Subscriber and Contact Information

Mail Penguin allows customers to manage mailing lists and send email communications.

Our customers may upload, enter, or otherwise provide information about their subscribers, customers, prospects, or other contacts. This information may include:

• Name
• Email address
• Company or organization
• Telephone number
• Mailing address
• Subscriber preferences
• Subscription or consent status
• Custom fields created by the Mail Penguin customer
• Email campaign engagement information

Mail Penguin processes this information on behalf of the customer using our platform.

Customers are responsible for ensuring that they have the legal authority and appropriate consent, where required, to collect, upload, store, and use their contacts' personal information.

2. Information Collected Automatically

When you visit our website or interact with Mail Penguin services or email communications, certain information may be collected automatically.

This may include:

• Internet Protocol address
• Browser type
• Device type
• Operating system
• Referring website
• Pages visited
• Date and time of access
• Login activity
• Approximate geographic information derived from an IP address
• Email delivery information
• Email opens
• Link clicks
• Bounce information
• Spam complaint information
• Unsubscribe activity

We may use cookies, pixels, web beacons, log files, and similar technologies to collect this information.

3. Email Tracking

Mail Penguin provides email marketing and campaign reporting features.

Emails sent through the Mail Penguin platform may contain tracking technologies that allow Mail Penguin and the sender to determine whether an email was delivered, opened, clicked, bounced, unsubscribed from, or reported as spam.

This information may be used to:

• Measure campaign performance
• Generate reports
• Improve email deliverability
• Identify invalid email addresses
• Process unsubscribe requests
• Manage spam complaints
• Prevent abuse of our services

Some email applications, browser settings, privacy technologies, or security systems may prevent or limit email tracking.

4. How We Use Personal Information

Mail Penguin may use personal information to:

• Provide and operate the Mail Penguin platform
• Create and administer customer accounts
• Authenticate users
• Process payments and subscriptions
• Provide technical and customer support
• Deliver email campaigns
• Monitor email delivery
• Process bounces, complaints, and unsubscribes
• Improve our website, services, and platform
• Protect our systems against fraud, abuse, and unauthorized access
• Diagnose technical problems
• Maintain security and service reliability
• Communicate with customers regarding their accounts
• Send service announcements and administrative communications
• Comply with legal and regulatory obligations
• Enforce our agreements and acceptable-use policies

We may also use aggregated or de-identified information for analytics, service improvement, and business planning where the information does not reasonably identify an individual.

5. Email Marketing and Consent

Mail Penguin is designed to support legitimate permission-based email communications.

Customers using Mail Penguin are responsible for complying with applicable email marketing, privacy, and anti-spam laws.

Customers should only send marketing communications to recipients when they have an appropriate lawful basis to do so.

Mail Penguin customers may not use the platform to send unsolicited bulk email, spam, or email to improperly obtained mailing lists.

Mail Penguin does not support the use of purchased, rented, scraped, harvested, or otherwise unlawfully obtained email lists.

6. Unsubscribe Requests

Marketing emails sent through Mail Penguin should contain an unsubscribe mechanism when required by applicable law.

Recipients may unsubscribe by using the unsubscribe link included in an email or through another method provided by the sender.

When an unsubscribe request is processed, the recipient's information may be retained on an unsubscribe or suppression list so that additional marketing email is not inadvertently sent to that address.

7. Email Delivery Providers

Mail Penguin may use third-party email delivery infrastructure to transmit email campaigns.

This may include Amazon Web Services and Amazon Simple Email Service (Amazon SES).

Information necessary to deliver and manage email may therefore be processed by these service providers. This may include email addresses, delivery information, bounce information, complaint information, and technical transmission data.

These service providers process information according to their own applicable privacy and security practices and contractual obligations.

8. Service Providers

Mail Penguin may use third-party companies to assist with operating our business and platform.

These providers may assist with services such as:

• Website hosting
• Cloud infrastructure
• Email delivery
• Domain name services
• Payment processing
• Analytics
• Security
• Database hosting
• Customer support
• Data backup
• Fraud and abuse prevention

We provide these service providers only with information reasonably necessary for them to perform services on our behalf.

9. Sale of Personal Information

Mail Penguin does not sell personal information in exchange for money.

Mail Penguin does not operate as a data broker and does not sell customer mailing lists or subscriber databases.

We also do not authorize customers to use Mail Penguin for the purpose of unlawfully selling, exchanging, or distributing personal information.

10. Sharing of Personal Information

We may share personal information when reasonably necessary to operate Mail Penguin, including with service providers described in this policy.

We may also disclose information when we reasonably believe disclosure is necessary to:

• Comply with applicable law
• Respond to a lawful subpoena, court order, or government request
• Investigate fraud or security incidents
• Protect Mail Penguin, our customers, or other individuals
• Enforce our Terms of Service or other agreements
• Prevent abuse of our platform

If Mail Penguin or substantially all of its assets are involved in a merger, acquisition, financing, restructuring, or sale, information may be transferred as part of that transaction subject to applicable law.

11. Customer Responsibility for Contact Data

Mail Penguin customers control the contact databases they create or upload to the platform.

For information contained in a customer's mailing list, the Mail Penguin customer generally determines:

• Why the information was collected
• Which contacts are included
• What information is stored
• Which campaigns are sent
• How the information is used
• How long the information should be retained

Individuals with questions regarding how a particular organization obtained or uses their information should first contact the organization that sent the email.

Mail Penguin may assist customers in responding to privacy requests when appropriate.

12. Data Retention

We retain personal information only for as long as reasonably necessary for purposes such as:

• Providing our services
• Maintaining customer accounts
• Meeting contractual obligations
• Resolving disputes
• Preventing fraud or abuse
• Maintaining suppression and unsubscribe records
• Complying with legal requirements

Retention periods may vary depending on the type of information and the reason it was collected.

Some information may remain in backup systems for a limited period after deletion from active systems.

13. Cookies and Similar Technologies

Mail Penguin may use cookies and similar technologies to:

• Maintain user sessions
• Remember preferences
• Authenticate users
• Improve website functionality
• Analyze website activity
• Protect accounts and systems
• Measure platform performance

You may be able to control cookies through your browser settings.

Disabling certain cookies may prevent some website or platform features from functioning properly.

14. Do Not Track Signals

Some browsers provide a "Do Not Track" setting.

Because there is not a single universally accepted technical standard for responding to all Do Not Track signals, Mail Penguin may not respond to traditional browser Do Not Track signals in every circumstance.

Where legally required and technically supported, Mail Penguin may recognize applicable privacy preference signals.

15. Data Security

Mail Penguin uses reasonable administrative, technical, and organizational safeguards designed to protect personal information from unauthorized access, disclosure, alteration, misuse, or destruction.

These safeguards may include:

• Encrypted website connections
• Access controls
• Account authentication
• Server and network security controls
• Security monitoring
• Software updates
• Data backups
• Restricted administrative access

No Internet-based service or data storage system can guarantee absolute security.

Customers are responsible for protecting their account credentials and should notify Mail Penguin promptly if they believe their account has been compromised.

16. Children's Privacy

Mail Penguin is intended for businesses and organizations and is not directed toward children under 13.

We do not knowingly collect personal information directly from children under 13 through the Mail Penguin website.

If we become aware that personal information from a child has been collected improperly, we will take reasonable steps to remove it.

17. Privacy Rights

Depending on where you live, you may have certain rights regarding your personal information.

These may include the right to:

• Request access to personal information
• Request information about how personal information is used
• Request correction of inaccurate personal information
• Request deletion of personal information
• Request a copy of certain personal information
• Object to or restrict certain processing
• Withdraw consent where processing is based on consent
• Opt out of certain uses or disclosures
• Appeal certain privacy decisions where required by law

Your rights may vary depending on your jurisdiction and may be subject to legal exceptions.

We may need to verify your identity before completing certain privacy requests.

18. California Privacy Rights

California residents may have additional rights under applicable California privacy laws.

Depending on whether those laws apply to Mail Penguin in a particular circumstance, California residents may have rights including:

• The right to know what categories of personal information are collected
• The right to request access to certain personal information
• The right to request correction of inaccurate personal information
• The right to request deletion of certain personal information
• The right to know the categories of third parties to whom information is disclosed
• The right to opt out of certain sales or sharing of personal information
• The right not to receive discriminatory treatment for exercising privacy rights

Mail Penguin does not sell personal information for monetary consideration.

If Mail Penguin determines that additional California privacy disclosures or mechanisms are legally required, we will provide them as appropriate.

19. International Users

Mail Penguin and its service providers may process or store information in the United States and other countries.

If you access Mail Penguin from outside the United States, your information may be transferred to and processed in countries whose privacy laws may differ from those where you reside.

Where legally required, appropriate safeguards may be used for international transfers of personal information.

20. Third-Party Websites

The Mail Penguin website and emails transmitted through the Mail Penguin platform may contain links to third-party websites.

Mail Penguin is not responsible for the privacy practices, content, security, or policies of third-party websites.

We encourage users to review the privacy policies of any third-party websites they visit.

21. Changes to This Privacy Policy

Mail Penguin may update this Privacy Policy periodically to reflect changes in our services, technology, business practices, or legal requirements.

When changes are made, the "Last Updated" date at the top of this Privacy Policy will be revised.

Material changes may also be communicated through the Mail Penguin website, customer account, email, or another reasonable method.

Continued use of Mail Penguin after an updated Privacy Policy becomes effective constitutes acknowledgment of the updated policy to the extent permitted by law.

22. Contact Us

Mail Penguin
Website: https://mailpenguins.com
Email: privacy@mailpenguins.com

For privacy requests concerning an email sent by one of our customers, you may also contact the organization identified as the sender of that email.