# Hunter Help Center

> Tutorials, video guides and FAQs to use Hunter

## Send Emails

- [How to use the free Email Warmup Calculator](http://help.hunter.io/en/articles/16204614-how-to-use-the-free-email-warmup-calculator.md): Build a personalized day-by-day warm-up schedule for a new or existing sending account, for free and without a Hunter account.
- [Generate your SPF and DMARC records with Hunter's free tools](http://help.hunter.io/en/articles/16204746-generate-your-spf-and-dmarc-records-with-hunter-s-free-tools.md): Build ready-to-publish SPF and DMARC DNS records for your domain, free and without a Hunter account.

## Add-ons

- [Why does the Email Finder stop working after a while in the Google Sheets Add-on?](http://help.hunter.io/en/articles/1971069-why-does-the-email-finder-stop-working-after-a-while-in-the-google-sheets-add-on.md): Find out about the limits of the Add-on

## Billing & Subscriptions

- [Your Billing & subscription page explained](http://help.hunter.io/en/articles/15080684-your-billing-subscription-page-explained.md): A complete walkthrough of Hunter's Billing & subscription page: manage your plan, buy credits, update billing details, and download invoices from the Overview and Details tabs.
- [Credit packs: how to buy extra credits in Hunter](http://help.hunter.io/en/articles/11738860-credit-packs-how-to-buy-extra-credits-in-hunter.md): Credit packs let you add extra credits on top of your Hunter plan when you're running low. Here's how they work, who can buy them, and how to set up auto-purchase.
- [I've used all my yearly credits: what now?](http://help.hunter.io/en/articles/11775967-i-ve-used-all-my-yearly-credits-what-now.md): You've reached your yearly credit limit on Hunter: here are your options to keep going, depending on which plan you're on.

## Account Management

- [Why do I need to provide a phone verification?](http://help.hunter.io/en/articles/1893957-why-do-i-need-to-provide-a-phone-verification.md): Learn how we protect your account while keeping your data secure
- [Password requirements and security rules](http://help.hunter.io/en/articles/3709382-password-requirements-and-security-rules.md): Understand Hunter’s password rules, breach checks, and how to create a strong password that meets security requirements.
- [Can I share my account to allow someone else to access it?](http://help.hunter.io/en/articles/1893782-can-i-share-my-account-to-allow-someone-else-to-access-it.md): Learn how to invite other colleagues and users to join you in Hunter and share your subscription with them
- [Why has my account been blocked or restricted for suspicious behavior?](http://help.hunter.io/en/articles/1893956-why-has-my-account-been-blocked-or-restricted-for-suspicious-behavior.md): Here's what you should do to access your account
- [I just paid for a subscription. Why can't I access my account?](http://help.hunter.io/en/articles/1893909-i-just-paid-for-a-subscription-why-can-t-i-access-my-account.md): In case you should see a "Information sent for verification" message after upgrading
- [Why haven't I received a verification email to confirm my account?](http://help.hunter.io/en/articles/1893696-why-haven-t-i-received-a-verification-email-to-confirm-my-account.md): In case you should have signed up but haven't received the confirmation email
- [I'm not receiving my phone verification code](http://help.hunter.io/en/articles/15859365-i-m-not-receiving-my-phone-verification-code.md): Troubleshooting steps if the SMS code to verify your account doesn't arrive
- [How many accounts can I create?](http://help.hunter.io/en/articles/1893896-how-many-accounts-can-i-create.md): Ensure that you only use one account to comply with our TOS

## FAQs

- [What is and where I can find my API secret key?](http://help.hunter.io/en/articles/1970978-what-is-and-where-i-can-find-my-api-secret-key.md)
- [Can I use a test API Key?](http://help.hunter.io/en/articles/7048972-can-i-use-a-test-api-key.md): How to use a test API Key to test Hunter's API
- [Is there a request per second limit?](http://help.hunter.io/en/articles/1971004-is-there-a-request-per-second-limit.md)
- [Can I verify a list of emails all at once?](http://help.hunter.io/en/articles/1947749-can-i-verify-a-list-of-emails-all-at-once.md)
- [Can I find email addresses from a list of names and companies?](http://help.hunter.io/en/articles/1938333-can-i-find-email-addresses-from-a-list-of-names-and-companies.md)
- [What are the accepted formats for the domains in the bulk functionalities?](http://help.hunter.io/en/articles/1947767-what-are-the-accepted-formats-for-the-domains-in-the-bulk-functionalities.md)
- [Can I find emails from a list of domains or companies?](http://help.hunter.io/en/articles/1947752-can-i-find-emails-from-a-list-of-domains-or-companies.md)
- [Can I filter to see Bulks created by a specific team member?](http://help.hunter.io/en/articles/8053595-can-i-filter-to-see-bulks-created-by-a-specific-team-member.md): See how to filter the Bulks \(Domain Search, Email Finder and Email Verifier\) to see only those created by a specific team member.
- [Why aren’t my characters displaying correctly in the uploaded file?](http://help.hunter.io/en/articles/10199069-why-aren-t-my-characters-displaying-correctly-in-the-uploaded-file.md)
- [Why is my CSV file using commas instead of displaying columns?](http://help.hunter.io/en/articles/10304405-why-is-my-csv-file-using-commas-instead-of-displaying-columns.md)
- [Bulk imports error messages](http://help.hunter.io/en/articles/9627253-bulk-imports-error-messages.md): This guide explains some error messages you may encounter when importing your file into Hunter and how to fix them.
- [How to verify recipients for an email sequence](http://help.hunter.io/en/articles/5613473-how-to-verify-recipients-for-an-email-sequence.md): Learn how to verify recipients directly in the Audience section before launching a sequence, to reduce bounce rate.
- [What are the permissions required to use the Chrome extension and Firefox Add-on?](http://help.hunter.io/en/articles/1971024-what-are-the-permissions-required-to-use-the-chrome-extension-and-firefox-add-on.md)
- [How do credits work in Hunter?](http://help.hunter.io/en/articles/1911617-how-do-credits-work-in-hunter.md): Understand how credits are used across all Hunter tools
- [Do unused credits from a previous month or plan roll over?](http://help.hunter.io/en/articles/1911591-do-unused-credits-from-a-previous-month-or-plan-roll-over.md): Find out what happens with your unused credits.
- [If a search returns no results, will I lose any credits?](http://help.hunter.io/en/articles/1911573-if-a-search-returns-no-results-will-i-lose-any-credits.md)
- [When do credits reset?](http://help.hunter.io/en/articles/1911597-when-do-credits-reset.md): Learn when your credits quota and plan reset
- [How are duplicated requests counted?](http://help.hunter.io/en/articles/1911656-how-are-duplicated-requests-counted.md): Learn how duplicate requests work in Hunter, when they’re free, and how they’re counted across plans and teams.
- [Why doesn't the Domain Search return any results?](http://help.hunter.io/en/articles/2452480-why-doesn-t-the-domain-search-return-any-results.md): No results found in the Domain Search? Here are all the reasons why this can happen.
- [Can I find the email pattern for a specific domain?](http://help.hunter.io/en/articles/1913868-can-i-find-the-email-pattern-for-a-specific-domain.md)
- [Does Hunter allow finding webmail such as Gmail or Outlook?](http://help.hunter.io/en/articles/1913857-does-hunter-allow-finding-webmail-such-as-gmail-or-outlook.md)
- [How to reveal, save, and export leads from Domain Search](http://help.hunter.io/en/articles/1913848-how-to-reveal-save-and-export-leads-from-domain-search.md): Learn how leads are revealed, automatically saved into Leads, how credits are used, and how to export them.
- [Can I integrate Hunter with LinkedIn?](http://help.hunter.io/en/articles/1971192-can-i-integrate-hunter-with-linkedin.md)
- [How many credits are used to verify an email?](http://help.hunter.io/en/articles/1935055-how-many-credits-are-used-to-verify-an-email.md): Learn how credits are used when verifying emails
- [Does an email marked as “valid” have no chance of bouncing?](http://help.hunter.io/en/articles/1935075-does-an-email-marked-as-valid-have-no-chance-of-bouncing.md)
- [Can I verify webmail addresses?](http://help.hunter.io/en/articles/1935171-can-i-verify-webmail-addresses.md): How to verify gmail.com, yahoo.com and other webmail addresses with Hunter.
- [Are emails returned in Hunter already verified?](http://help.hunter.io/en/articles/10199589-are-emails-returned-in-hunter-already-verified.md)
- [Why doesn't the Email Finder return any result?](http://help.hunter.io/en/articles/4123615-why-doesn-t-the-email-finder-return-any-result.md): No result found in the Email Finder? Here are the next steps you can follow.
- [Are the emails found in the Email Finder publicly sourced?](http://help.hunter.io/en/articles/2085802-are-the-emails-found-in-the-email-finder-publicly-sourced.md)
- [Can I find emails from social media profiles?](http://help.hunter.io/en/articles/6731529-can-i-find-emails-from-social-media-profiles.md): Find emails from social media profiles
- [Can I move one or multiple leads from one list to another?](http://help.hunter.io/en/articles/1947852-can-i-move-one-or-multiple-leads-from-one-list-to-another.md): Learn how to move your leads to another list and how to merge lists.
- [Is it possible to save the same Lead twice?](http://help.hunter.io/en/articles/7064275-is-it-possible-to-save-the-same-lead-twice.md)
- [Can I verify my existing leads?](http://help.hunter.io/en/articles/5613427-can-i-verify-my-existing-leads.md): How to verify existing leads in Hunter
- [Can I share my leads with other team members?](http://help.hunter.io/en/articles/1947844-can-i-share-my-leads-with-other-team-members.md)
- [Will all my leads be integrated with a new service after connecting it with Hunter?](http://help.hunter.io/en/articles/1947875-will-all-my-leads-be-integrated-with-a-new-service-after-connecting-it-with-hunter.md): How to ensure your leads are synced to your CRM
- [Is there a limit for the number of leads that can be imported as a CSV file?](http://help.hunter.io/en/articles/1947889-is-there-a-limit-for-the-number-of-leads-that-can-be-imported-as-a-csv-file.md)
- [Can I tag companies and people in Leads?](http://help.hunter.io/en/articles/10095960-can-i-tag-companies-and-people-in-leads.md): Learn how to tag your leads or companies in Hunter Leads
- [How to filter leads by team member?](http://help.hunter.io/en/articles/8053742-how-to-filter-leads-by-team-member.md): Discover how to filter your leads section only to see the leads created by a specific team member.
- [Where can I track and access my revealed emails?](http://help.hunter.io/en/articles/12758546-where-can-i-track-and-access-my-revealed-emails.md): Review and access your previously revealed emails in Hunter.
- [Can I use Hunter for one time only?](http://help.hunter.io/en/articles/1897731-can-i-use-hunter-for-one-time-only.md): Learn how to use Hunter for one month or choose a Data Platform plan for flexible, API-only access, and how to avoid automatic renewals.
- [Do you offer a nonprofit discount?](http://help.hunter.io/en/articles/6731556-do-you-offer-a-nonprofit-discount.md): Discounts for non-profit and charity organizations
- [Do you have an affiliate program?](http://help.hunter.io/en/articles/1897838-do-you-have-an-affiliate-program.md)
- [Does Hunter offer a Demo?](http://help.hunter.io/en/articles/6731520-does-hunter-offer-a-demo.md): Watch a demo of Hunter 🎥

## Legal and Privacy

- [GDPR Compliance](http://help.hunter.io/en/articles/1890029-gdpr-compliance.md): Understand GDPR compliance at Hunter, including our roles as data controller and processor, DPA access, sub-processors, and where your data is processed.
- [Open tracking consent for EU/UK recipients in Sequences](http://help.hunter.io/en/articles/16000680-open-tracking-consent-for-eu-uk-recipients-in-sequences.md): Understand why open tracking now defaults to off for new sequences, and how to manage it for consented and non-consented contacts.
- [Remove your data from Hunter](http://help.hunter.io/en/articles/2020343-remove-your-data-from-hunter.md): Learn how to use Hunter's Claim feature to permanently remove your professional email data from Hunter's database.

## Signals

- [What is Hunter Signals?](http://help.hunter.io/en/articles/15423069-what-is-hunter-signals.md): An overview of Hunter Signals, what it is, what signal types are available, and how it can help you find and reach the right companies at the right time.
- [Setting up a Signal](http://help.hunter.io/en/articles/15423154-setting-up-a-signal.md): How to create a Signal in Hunter, choose your signal type, configure your filters, and start receiving company updates, job openings, or funding alerts.
- [Finding emails from your Signals results](http://help.hunter.io/en/articles/15430992-finding-emails-from-your-signals-results.md): How to find and reveal email addresses for the companies appearing in your Signals results, both in bulk and for individual companies.
- [Managing your Signals](http://help.hunter.io/en/articles/15442689-managing-your-signals.md): How to edit, rename, pause, duplicate, and delete your Signals, plus what to expect from email notifications and account limits.
- [Signals FAQs](http://help.hunter.io/en/articles/15442805-signals-faqs.md): Answers to the most common questions about Hunter Signals