# Help & Support

Find answers to common questions and troubleshoot issues with Mailtrap's Email API/SMTP service. Our comprehensive help resources are designed to get you back on track quickly.

## Resources

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Frequently Asked Questions</strong></td><td><em>Browse our comprehensive FAQ section for quick answers to common questions about Email API/SMTP setup, integration, and best practices.</em></td><td><a href="help/faqs">faqs</a></td></tr><tr><td><strong>Troubleshooting Guide</strong></td><td><em>Step-by-step solutions for common issues including authentication errors, domain configuration problems, and delivery issues.</em></td><td><a href="help/troubleshooting">troubleshooting</a></td></tr></tbody></table>

## Common Issues

### Authentication & Access

* [401 Unauthorized Error](https://docs.mailtrap.io/email-api-smtp/help/troubleshooting/unauthorized-401-error) - Fix API token and authentication issues
* [Domain Not Allowed](https://docs.mailtrap.io/email-api-smtp/help/troubleshooting/sending-from-domain-not-allowed) - Resolve domain verification problems

### Email Delivery Issues

* [From Header Mismatch](https://docs.mailtrap.io/email-api-smtp/help/troubleshooting/from-header-domain-mismatch) - Fix sender address configuration
* [SSL Cipher Error](https://docs.mailtrap.io/email-api-smtp/help/troubleshooting/ssl-cipher-overlap-error) - Resolve SSL/TLS connection issues
* [Office 365 Quarantine](https://docs.mailtrap.io/email-api-smtp/help/troubleshooting/ms-office-365-quarantine) - Handle Microsoft email filtering

## Getting Help

### Self-Service Resources

1. Check the [FAQs](https://docs.mailtrap.io/email-api-smtp/help/faqs) for quick answers
2. Review the [Troubleshooting Guide](https://docs.mailtrap.io/email-api-smtp/help/troubleshooting)
3. Search our documentation using the search bar
4. Check our [API Reference](https://api-docs.mailtrap.io/)

### <i class="fa-comments-question-check">:comments-question-check:</i>Contact Support

If you can’t find the answer you need in our documentation and would like to contact support and speak with an agent, we’re here to help.

You can get in touch with the Mailtrap Support team using one of the following ways:

* **From your Mailtrap account**&#x20;

1. Log in to your account [here](https://mailtrap.io/signin).
2. Go to the <i class="fa-circle-question">:circle-question:</i>[<mark style="color:$primary;">**Help Center**</mark>](https://mailtrap.io/help-center) > <i class="fa-message-dots">:message-dots:</i> Get Help
3. Click <mark style="color:$primary;">**Start conversation.**</mark>&#x20;

<figure><img src="https://1476453098-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS3xyr7ba7aGO19rc8dSK%2Fuploads%2F7hftpJFYZKk1D4GQCYd8%2FScreenshot%202026-02-19%20at%2017.12.57.png?alt=media&#x26;token=90aebf2d-07b7-4c5b-aa6b-07623bc02077" alt=""><figcaption></figcaption></figure>

* **Email us at** 📧 <support@mailtrap.io>

Whether you need technical assistance, help troubleshooting an issue, or simply want to talk to customer support, our team will be happy to assist you.

### Before Contacting Support

Please have the following information ready:

* Your account email
* Error messages (exact wording)
* Request IDs from email logs
* Steps to reproduce the issue
* Screenshots if applicable

## Feedback & suggestions

*We welcome technical feedback and contributions that help us improve Mailtrap’s functionality and documentation. Please use the appropriate channel depending on the type of request.*

#### <i class="fa-bug">:bug:</i>Bug Reports

**If you encounter a product issue or unexpected behavior, please** [#contact-support](#contact-support "mention")**.**

To help us investigate efficiently, include:

* A detailed description of the issue
* Exact reproduction steps
* Relevant stream, domain, sandbox, or account details
* Timestamps (including timezone)
* Screenshots or logs if available

#### <i class="fa-file-circle-plus">:file-circle-plus:</i>Feature Requests

For product improvements or new feature proposals, use **our** [**Public Roadmap**](https://mailtrap.featurebase.app/en) **portal**.

There you can:

* **Submit a new feature request**

<div align="left"><figure><img src="https://1476453098-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS3xyr7ba7aGO19rc8dSK%2Fuploads%2Ff9yf6pEv5ZXR4EHh5ABg%2FScreenshot%202026-03-02%20at%2010.32.03.png?alt=media&#x26;token=2cea9a79-0387-4fb3-988d-272d13327b77" alt="" width="375"><figcaption></figcaption></figure></div>

* **Upvote existing requests**

<div align="left"><figure><img src="https://1476453098-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS3xyr7ba7aGO19rc8dSK%2Fuploads%2Fax54DgMBWcXzIQEiLeCg%2FScreenshot%202026-03-02%20at%2010.33.40.png?alt=media&#x26;token=0454c018-c008-4287-a329-407bcd3e1c35" alt="" width="375"><figcaption></figcaption></figure></div>

* **Subscribe to updates for specific requests**

<div align="left"><figure><img src="https://1476453098-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS3xyr7ba7aGO19rc8dSK%2Fuploads%2FmB0AdDAkT5l43l0jmBps%2FScreenshot%202026-03-02%20at%2010.33.11.png?alt=media&#x26;token=790a0502-73e1-4bd2-803a-c4b4c7973d60" alt="" width="375"><figcaption></figcaption></figure></div>

#### <i class="fa-file-doc">:file-doc:</i>Documentation Improvements

If you identify unclear, incomplete, or outdated documentation:

1. Use the **feedback widget** located on the right-hand side of the page to rate the article:\
   ![](https://1476453098-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS3xyr7ba7aGO19rc8dSK%2Fuploads%2FOLpynTOT2XMAP3d7c7Ct%2FScreenshot%202026-03-02%20at%2010.30.47.png?alt=media\&token=c71836e0-95da-47ae-b9d7-917dbebc9149)
2. **Provide specific feedback** describing what should be corrected, clarified, or expanded\
   ![](https://1476453098-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS3xyr7ba7aGO19rc8dSK%2Fuploads%2FU94kVQcPPjT7e6bgJz4m%2FScreenshot%202026-03-02%20at%2010.31.22.png?alt=media\&token=7e0ec64d-058e-4b47-a25f-4bd01d40e549)

This helps us continuously refine our docs.

#### <i class="fa-square-code">:square-code:</i>GitHub & Technical Collaboration

For open-source projects, SDKs, or public repositories, join us on [GitHub](https://github.com/mailtrap).

## Quick Solutions

### Can't send emails?

1. Verify your [API token](https://docs.mailtrap.io/email-api-smtp/setup/api-tokens) is correct
2. Check your [sending domain](https://docs.mailtrap.io/email-api-smtp/setup/sending-domain) is verified
3. Review your [sending limits](https://docs.mailtrap.io/email-api-smtp/setup/sending-limits)
4. Confirm your [integration](https://docs.mailtrap.io/email-api-smtp/setup/api-integration) is properly configured

### Emails not reaching inbox?

1. Check [email logs](https://docs.mailtrap.io/email-api-smtp/analytics/logs) for delivery status
2. Review [bounce categorization](https://docs.mailtrap.io/email-api-smtp/deliverability/bounce-categorization) for issues
3. Verify SPF, DKIM, and DMARC records
4. Check if recipients are on [suppressions list](https://docs.mailtrap.io/email-api-smtp/deliverability/suppressions-list)

### Integration issues?

1. Review the [API integration guide](https://docs.mailtrap.io/email-api-smtp/setup/api-integration)
2. Check the [SMTP integration guide](https://docs.mailtrap.io/email-api-smtp/setup/smtp-integration)
3. Test with [Email Sandbox](https://docs.mailtrap.io/email-sandbox/overview) first
4. Use our [API reference](https://api-docs.mailtrap.io/) for detailed endpoints