# [Support] SendBridge Support FAQs
1. **What is Sendbridge?**
Sendbridge is an email communication platform that offers various services including [email checker](https://sendbridge.com) to ensure high deliverability rates for your email campaigns.
2. **How does Sendbridge's email validation work?**
The email validation service checks email addresses in your list for accuracy, validity, and deliverability, reducing bounce rates and improving sender reputation.
3. **What file formats does Sendbridge accept for email lists?**
Typically, services like Sendbridge accept common formats such as CSV, XLS, or TXT files for easy upload and validation.
4. **Can Sendbridge integrate with my existing email marketing tools?**
Most email service platforms offer integrations with popular marketing tools and CRMs to streamline your workflow.
5. **Is there a limit to the number of emails I can validate?**
There may be limits based on your subscription plan, but specifics would depend on the chosen package or custom arrangements.
6. **How secure is Sendbridge with my data?**
Reputable services prioritize data security, often using encryption and adhering to privacy laws to protect your information.
7. **What happens to invalid email addresses found during validation?**
Invalid emails are typically flagged or removed from your list, improving the overall quality and effectiveness of your campaigns.
8. **How long does email validation take with Sendbridge?**
Validation time can vary based on list size, but services strive for efficiency, often completing validations within minutes to hours.
9. **Does Sendbridge offer support if I have issues or questions?**
Customer support is a standard feature, with resources like FAQs, email support, and sometimes live chat available.
10. **What pricing plans does Sendbridge offer for email validation?**
Pricing often varies based on features and volume of emails to be validated, with options ranging from pay-as-you-go to monthly subscriptions.
For the most accurate and detailed information, please check directly with [Sendbridge's official resources](https://hackmd.io/@martyx/email-validation-power) or contact their support team.
More about emails: [https://en.wikipedia.org/wiki/Email_address](https://en.wikipedia.org/wiki/Email_address)