{"success":true,"data":{"email":"[email protected]","valid":true,"syntax":true,"mx":true,"disposable":false,"role":false,"free_provider":true,"typo_suggestion":null,"email_type":"free","deliverability":"high","risk_score":5},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26019/validate+email&email=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"results":[{"email":"[email protected]","valid":true,"syntax":true,"mx":true,"disposable":false,"role":false,"free_provider":true,"typo_suggestion":null,"email_type":"free","deliverability":"high","risk_score":5},{"email":"[email protected]","valid":true,"syntax":true,"mx":true,"disposable":true,"role":false,"free_provider":false,"typo_suggestion":null,"email_type":"disposable","deliverability":"low","risk_score":75},{"email":"[email protected]","valid":true,"syntax":true,"mx":true,"disposable":false,"role":false,"free_provider":false,"typo_suggestion":null,"email_type":"business","deliverability":"high","risk_score":0}],"summary":{"total":3,"valid_count":3,"invalid_count":0,"high_risk_count":1,"disposable_count":1,"role_count":0,"free_provider_count":1}},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request POST 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26020/validate+emails+batch' --header 'Authorization: Bearer YOUR_API_KEY'
--data-raw '{"emails": ["[email protected]", "[email protected]", "[email protected]"]}'
{"success":true,"data":{"email":"[email protected]","valid":true,"reason":null},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26021/check+syntax&email=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"email":"[email protected]","risk_score":5,"deliverability":"high","breakdown":{"syntax_failed":false,"no_mx":false,"mx_timeout":false,"disposable":false,"role_based":false,"free_provider":true,"typo_present":false}},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26022/get+risk+score&email=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"domain":"gmail.com","mx":true,"mx_records":[{"exchange":"gmail-smtp-in.l.google.com","priority":5},{"exchange":"alt1.gmail-smtp-in.l.google.com","priority":10},{"exchange":"alt2.gmail-smtp-in.l.google.com","priority":20},{"exchange":"alt3.gmail-smtp-in.l.google.com","priority":30},{"exchange":"alt4.gmail-smtp-in.l.google.com","priority":40}],"disposable":false,"free_provider":true,"provider_name":"Gmail","typo_of":null},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26023/get+domain+intelligence&domain=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"results":[{"domain":"gmail.com","mx":true,"mx_records":[{"exchange":"gmail-smtp-in.l.google.com","priority":5},{"exchange":"alt1.gmail-smtp-in.l.google.com","priority":10},{"exchange":"alt2.gmail-smtp-in.l.google.com","priority":20},{"exchange":"alt3.gmail-smtp-in.l.google.com","priority":30},{"exchange":"alt4.gmail-smtp-in.l.google.com","priority":40}],"disposable":false,"free_provider":true,"provider_name":"Gmail","typo_of":null},{"domain":"mailinator.com","mx":true,"mx_records":[{"exchange":"mail2.mailinator.com","priority":1},{"exchange":"mail.mailinator.com","priority":1}],"disposable":true,"free_provider":false,"provider_name":null,"typo_of":null},{"domain":"acmewidgets.com","mx":true,"mx_records":[{"exchange":"spamtitan.isomedia.com","priority":5}],"disposable":false,"free_provider":false,"provider_name":null,"typo_of":null}],"summary":{"total":3,"mx_valid_count":3,"disposable_count":1,"free_provider_count":1,"typo_count":0}},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request POST 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26024/get+domain+intelligence+batch' --header 'Authorization: Bearer YOUR_API_KEY'
--data-raw '{"domains": ["gmail.com", "mailinator.com", "acmewidgets.com"]}'
{"success":true,"data":{"domain":"gmail.com","mx":true,"records":[{"exchange":"gmail-smtp-in.l.google.com","priority":5},{"exchange":"alt1.gmail-smtp-in.l.google.com","priority":10},{"exchange":"alt2.gmail-smtp-in.l.google.com","priority":20},{"exchange":"alt3.gmail-smtp-in.l.google.com","priority":30},{"exchange":"alt4.gmail-smtp-in.l.google.com","priority":40}],"lookup_time_ms":1.209,"timeout":false},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26025/check+mx+records&domain=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"domain":"mailinator.com","disposable":true,"domain_count":121570},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26026/check+disposable+domain&domain=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"domains":["0-180.com","0-30-24.com","0-420.com"],"page":1,"limit":3,"total":121570,"total_pages":40524},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26027/list+disposable+domains?page=1&limit=3' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"email":"[email protected]","role":true,"prefix":"support","category":"support"},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26028/check+role+address&email=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"original":"[email protected]","suggestion":"gmail.com","corrected_email":"[email protected]","confidence":"high"},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26029/suggest+typo+correction&email=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"domain":"gmail.com","free_provider":true,"provider_name":"Gmail"},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26030/check+free+provider&domain=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"providers":[{"domain":"gmail.com","name":"Gmail","type":"free"},{"domain":"yahoo.com","name":"Yahoo Mail","type":"free"},{"domain":"outlook.com","name":"Outlook","type":"free"},{"domain":"hotmail.com","name":"Hotmail","type":"free"},{"domain":"icloud.com","name":"iCloud Mail","type":"free"},{"domain":"me.com","name":"iCloud Mail","type":"free"},{"domain":"mac.com","name":"iCloud Mail","type":"free"},{"domain":"aol.com","name":"AOL Mail","type":"free"},{"domain":"protonmail.com","name":"Proton Mail","type":"free"},{"domain":"proton.me","name":"Proton Mail","type":"free"},{"domain":"zoho.com","name":"Zoho Mail","type":"free"},{"domain":"gmx.com","name":"GMX Mail","type":"free"},{"domain":"gmx.net","name":"GMX Mail","type":"free"},{"domain":"mail.com","name":"Mail.com","type":"free"},{"domain":"live.com","name":"Microsoft Live","type":"free"},{"domain":"msn.com","name":"MSN","type":"free"},{"domain":"ymail.com","name":"Yahoo Mail","type":"free"},{"domain":"rocketmail.com","name":"Yahoo Mail","type":"free"},{"domain":"fastmail.com","name":"FastMail","type":"free"},{"domain":"tutanota.com","name":"Tutanota","type":"free"},{"domain":"hey.com","name":"Hey","type":"free"},{"domain":"web.de","name":"WEB.DE","type":"free"},{"domain":"freenet.de","name":"freenet Mail","type":"free"},{"domain":"t-online.de","name":"T-Online","type":"isp"},{"domain":"orange.fr","name":"Orange Mail","type":"isp"},{"domain":"free.fr","name":"Free.fr","type":"isp"},{"domain":"laposte.net","name":"La Poste","type":"free"},{"domain":"libero.it","name":"Libero Mail","type":"free"},{"domain":"virgilio.it","name":"Virgilio Mail","type":"free"},{"domain":"mail.ru","name":"Mail.ru","type":"free"},{"domain":"yandex.ru","name":"Yandex Mail","type":"free"},{"domain":"rambler.ru","name":"Rambler Mail","type":"free"},{"domain":"163.com","name":"NetEase 163","type":"free"},{"domain":"qq.com","name":"QQ Mail","type":"free"},{"domain":"126.com","name":"NetEase 126","type":"free"},{"domain":"rediffmail.com","name":"Rediffmail","type":"free"},{"domain":"naver.com","name":"Naver Mail","type":"free"},{"domain":"daum.net","name":"Daum Mail","type":"free"},{"domain":"yahoo.co.jp","name":"Yahoo Japan Mail","type":"free"},{"domain":"yahoo.co.uk","name":"Yahoo UK","type":"free"},{"domain":"btinternet.com","name":"BT Internet","type":"isp"},{"domain":"gmx.de","name":"GMX Mail","type":"free"},{"domain":"gmx.at","name":"GMX Mail","type":"free"},{"domain":"gmx.ch","name":"GMX Mail","type":"free"},{"domain":"arcor.de","name":"Arcor Mail","type":"isp"},{"domain":"1und1.de","name":"1&1 Mail","type":"isp"},{"domain":"mail.de","name":"mail.de","type":"free"},{"domain":"posteo.de","name":"Posteo","type":"free"},{"domain":"mailbox.org","name":"Mailbox.org","type":"free"},{"domain":"wp.pl","name":"Wirtualna Polska","type":"free"},{"domain":"onet.pl","name":"Onet Poczta","type":"free"},{"domain":"interia.pl","name":"Interia","type":"free"},{"domain":"o2.pl","name":"O2 Poczta","type":"free"},{"domain":"tlen.pl","name":"Tlen.pl","type":"free"},{"domain":"seznam.cz","name":"Seznam Email","type":"free"},{"domain":"centrum.cz","name":"Centrum Email","type":"free"},{"domain":"atlas.cz","name":"Atlas Email","type":"free"},{"domain":"centrum.sk","name":"Centrum.sk","type":"free"},{"domain":"azet.sk","name":"Azet.sk","type":"free"},{"domain":"freemail.hu","name":"Freemail.hu","type":"free"},{"domain":"citromail.hu","name":"Citromail","type":"free"},{"domain":"abv.bg","name":"ABV Mail","type":"free"},{"domain":"mail.bg","name":"Mail.bg","type":"free"},{"domain":"inbox.lv","name":"Inbox.lv","type":"free"},{"domain":"inbox.lt","name":"Inbox.lt","type":"free"},{"domain":"one.lt","name":"One.lt","type":"free"},{"domain":"yahoo.it","name":"Yahoo Italy","type":"free"},{"domain":"yahoo.de","name":"Yahoo Germany","type":"free"},{"domain":"yahoo.fr","name":"Yahoo France","type":"free"},{"domain":"yahoo.es","name":"Yahoo Spain","type":"free"},{"domain":"yahoo.ca","name":"Yahoo Canada","type":"free"},{"domain":"yahoo.com.au","name":"Yahoo Australia","type":"free"},{"domain":"yahoo.com.br","name":"Yahoo Brazil","type":"free"},{"domain":"yahoo.com.mx","name":"Yahoo Mexico","type":"free"},{"domain":"yahoo.in","name":"Yahoo India","type":"free"},{"domain":"yahoo.co.in","name":"Yahoo India","type":"free"},{"domain":"live.co.uk","name":"Microsoft Live UK","type":"free"},{"domain":"live.fr","name":"Microsoft Live France","type":"free"},{"domain":"live.de","name":"Microsoft Live Germany","type":"free"},{"domain":"live.it","name":"Microsoft Live Italy","type":"free"},{"domain":"live.com.au","name":"Microsoft Live Australia","type":"free"},{"domain":"hotmail.co.uk","name":"Hotmail UK","type":"free"},{"domain":"hotmail.fr","name":"Hotmail France","type":"free"},{"domain":"hotmail.de","name":"Hotmail Germany","type":"free"},{"domain":"hotmail.it","name":"Hotmail Italy","type":"free"},{"domain":"hotmail.es","name":"Hotmail Spain","type":"free"},{"domain":"bol.com.br","name":"BOL Mail","type":"free"},{"domain":"uol.com.br","name":"UOL Mail","type":"free"},{"domain":"terra.com.br","name":"Terra Mail","type":"free"},{"domain":"ig.com.br","name":"iG Mail","type":"free"},{"domain":"globo.com","name":"Globo Mail","type":"free"},{"domain":"hanmail.net","name":"Hanmail","type":"free"},{"domain":"nate.com","name":"Nate Mail","type":"free"},{"domain":"sina.com","name":"Sina Mail","type":"free"},{"domain":"sina.cn","name":"Sina Mail","type":"free"},{"domain":"sohu.com","name":"Sohu Mail","type":"free"},{"domain":"yeah.net","name":"NetEase Yeah","type":"free"},{"domain":"foxmail.com","name":"Foxmail","type":"free"},{"domain":"aliyun.com","name":"Aliyun Mail","type":"free"},{"domain":"in.com","name":"In.com Mail","type":"free"},{"domain":"indiatimes.com","name":"Indiatimes Mail","type":"free"},{"domain":"email.it","name":"Email.it","type":"free"},{"domain":"tin.it","name":"Tin.it","type":"isp"},{"domain":"alice.it","name":"Alice Mail","type":"isp"},{"domain":"tiscali.it","name":"Tiscali Mail","type":"isp"},{"domain":"aruba.it","name":"Aruba Mail","type":"free"},{"domain":"sfr.fr","name":"SFR Mail","type":"isp"},{"domain":"bbox.fr","name":"Bbox Mail","type":"isp"},{"domain":"neuf.fr","name":"Neuf Mail","type":"isp"},{"domain":"voila.fr","name":"Voila Mail","type":"free"},{"domain":"wanadoo.fr","name":"Wanadoo Mail","type":"isp"},{"domain":"numericable.fr","name":"Numericable Mail","type":"isp"},{"domain":"aim.com","name":"AIM Mail","type":"free"},{"domain":"netscape.net","name":"Netscape Mail","type":"free"},{"domain":"excite.com","name":"Excite Mail","type":"free"},{"domain":"lycos.com","name":"Lycos Mail","type":"free"},{"domain":"juno.com","name":"Juno","type":"isp"},{"domain":"netzero.net","name":"NetZero","type":"isp"},{"domain":"inbox.com","name":"Inbox.com","type":"free"},{"domain":"usa.com","name":"Mail.com Network","type":"free"},{"domain":"consultant.com","name":"Mail.com Network","type":"free"},{"domain":"engineer.com","name":"Mail.com Network","type":"free"},{"domain":"europe.com","name":"Mail.com Network","type":"free"},{"domain":"lawyer.com","name":"Mail.com Network","type":"free"},{"domain":"post.com","name":"Mail.com Network","type":"free"},{"domain":"techie.com","name":"Mail.com Network","type":"free"},{"domain":"writeme.com","name":"Mail.com Network","type":"free"},{"domain":"cheerful.com","name":"Mail.com Network","type":"free"},{"domain":"myself.com","name":"Mail.com Network","type":"free"},{"domain":"workmail.com","name":"Mail.com Network","type":"free"},{"domain":"accountant.com","name":"Mail.com Network","type":"free"},{"domain":"activist.com","name":"Mail.com Network","type":"free"},{"domain":"alumni.com","name":"Mail.com Network","type":"free"},{"domain":"doctor.com","name":"Mail.com Network","type":"free"},{"domain":"dr.com","name":"Mail.com Network","type":"free"},{"domain":"runbox.com","name":"Runbox","type":"free"},{"domain":"mailfence.com","name":"Mailfence","type":"free"},{"domain":"posteo.net","name":"Posteo","type":"free"},{"domain":"disroot.org","name":"Disroot","type":"free"},{"domain":"kolabnow.com","name":"Kolab Now","type":"free"},{"domain":"talktalk.net","name":"TalkTalk Mail","type":"isp"},{"domain":"sky.com","name":"Sky Mail","type":"isp"},{"domain":"virginmedia.com","name":"Virgin Media Mail","type":"isp"},{"domain":"blueyonder.co.uk","name":"Blueyonder","type":"isp"},{"domain":"mweb.co.za","name":"MWEB Mail","type":"isp"},{"domain":"webmail.co.za","name":"Webmail.co.za","type":"free"},{"domain":"telkomsa.net","name":"Telkom SA","type":"isp"},{"domain":"iafrica.com","name":"iAfrica Mail","type":"isp"},{"domain":"yandex.com","name":"Yandex Mail","type":"free"},{"domain":"inbox.ru","name":"Mail.ru Network","type":"free"},{"domain":"bk.ru","name":"Mail.ru Network","type":"free"},{"domain":"list.ru","name":"Mail.ru Network","type":"free"},{"domain":"comcast.net","name":"Comcast Xfinity","type":"isp"},{"domain":"verizon.net","name":"Verizon","type":"isp"},{"domain":"att.net","name":"AT&T","type":"isp"},{"domain":"cox.net","name":"Cox Communications","type":"isp"},{"domain":"charter.net","name":"Charter/Spectrum","type":"isp"},{"domain":"earthlink.net","name":"EarthLink","type":"isp"},{"domain":"centurylink.net","name":"CenturyLink","type":"isp"},{"domain":"frontier.com","name":"Frontier Communications","type":"isp"},{"domain":"windstream.net","name":"Windstream","type":"isp"},{"domain":"optimum.net","name":"Optimum (Altice)","type":"isp"},{"domain":"telekom.de","name":"Deutsche Telekom","type":"isp"},{"domain":"bigpond.com","name":"Telstra BigPond","type":"isp"},{"domain":"optusnet.com.au","name":"Optus","type":"isp"},{"domain":"iinet.net.au","name":"iiNet","type":"isp"},{"domain":"rogers.com","name":"Rogers","type":"isp"},{"domain":"sympatico.ca","name":"Bell Sympatico","type":"isp"},{"domain":"shaw.ca","name":"Shaw Communications","type":"isp"},{"domain":"telus.net","name":"Telus","type":"isp"},{"domain":"xtra.co.nz","name":"Spark Xtra","type":"isp"}]},"_note":"Response truncated for documentation purposes"}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26031/list+free+providers' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"original":"[email protected]","normalized":"[email protected]","changed":true,"rules_applied":["lowercased","stripped_plus_tag","stripped_dots"]},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26032/normalize+email&email=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"email":"[email protected]","domain":"acmewidgets.com","email_type":"business","is_business":true},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26033/classify+email+type&email=Required' --header 'Authorization: Bearer YOUR_API_KEY'
{"success":true,"data":{"uptime_seconds":624071,"version":"1.0.0","node_version":"v18.20.5","disposable_domain_count":121570,"free_provider_count":172,"isp_count":43,"role_prefix_count":78,"typo_map_size":208,"endpoints":19,"smtp_enabled":false},"meta":{"disclaimer":"Validation results are indicative only. Deliverability cannot be fully guaranteed without live SMTP verification.","cached":false}}
curl --location --request GET 'https://zylalabs.com/api/13004/global+email+validation+and+deliverability+api/26034/health+check' --header 'Authorization: Bearer YOUR_API_KEY'
After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Global Email Validation and Deliverability API simply include your bearer token in the Authorization header.
| Header | Description |
|---|---|
Authorization
|
Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
|
No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
(Save 2 months with annual billing 🎉)
Validates email addresses against RFC 5322 syntax, checks MX records via live DNS, detects disposable domains from a list of over 121,000 known providers, flags role-based addresses, suggests corrections for common domain typos, classifies the domain type, and normalizes addresses for de-duplication. Each request returns a weighted risk score and a deliverability verdict. The API is stateless and stores no submitted data.
Authentication is handled by the marketplace gateway, so no key management is required in your own code.
Risk scores are computed from weighted flags: invalid syntax scores 100 and short-circuits all other checks, no MX record adds 55, an MX timeout adds 30, a disposable domain adds 75, a role-based address adds 20, a typo adds 10, and a free provider adds 5. The total is capped at 100. The deliverability verdict is derived from the score: high for 0 to 20, medium for 21 to 49, low for 50 to 79, and undeliverable for 80 to 100.
Domain type is classified in precedence order: disposable, then free, educational, government, ISP, and finally business. When passing an email address that contains a plus sign in a query string, the plus must be percent-encoded as %2B, since an unencoded plus is interpreted as a space and will fail syntax validation.
No. It validates syntax, confirms the domain can receive mail through a live MX record lookup, and scores reputation signals such as disposable domains, role-based addresses, and typos. It does not perform live SMTP mailbox verification, so it cannot confirm that a specific mailbox exists. The deliverability verdict and risk score are strong indicative signals, not a delivery guarantee
Each detected flag adds weighted points. No MX record adds 55, an MX timeout adds 30, a disposable domain adds 75, a role-based address adds 20, a typo adds 10, and a free provider adds 5. Invalid syntax scores 100 and skips all other checks. The total is capped at 100, and the deliverability verdict is derived from it. High is 0 to 20, medium is 21 to 49, low is 50 to 79, and undeliverable is 80 to 100.
Disposable or throwaway domains are temporary email services such as Mailinator and ten-minute-mail providers, commonly used to bypass signup gates. The API checks against a list of over 121000 known disposable domains. You can check a single domain with the disposable endpoint or export the full list with the disposable list endpoint.
It runs in two stages. First it checks an exact map of common misspellings of the top providers, which returns high confidence. If there is no exact match, it compares the domain against the known provider list by edit distance, and a single-character difference returns the closest match at medium confidence. If neither stage matches, no suggestion is returned.
A free provider is an independent webmail service such as Gmail, Yahoo, or Outlook. An ISP type is a mailbox bundled with an internet or telecom subscription such as Comcast, BT Internet, or Orange. Both are non-business addresses, and the distinction is useful for analytics and for filtering business signups.
Yes. The batch validation endpoint accepts up to 50 email addresses in a single request and returns a result for each one plus a summary of counts across the batch. There is also a batch domain endpoint that accepts up to 100 domains.
No. The API is stateless and uses no database. Email addresses and domains you submit are processed in memory to produce the response and are not retained. The only data loaded is the static list of disposable domains, providers, and typo mappings.
In a URL query string an unencoded plus sign is read as a space before the API receives it, and a space is not valid in an email address, so the request fails validation. Encode the plus sign as %2B and it will be received correctly.
Each endpoint returns specific data related to email validation and domain intelligence. For example, the Validate Email endpoint returns validation results including validity, syntax, MX status, and a risk score, while the Get Domain Intelligence endpoint provides details about the domain's MX records, disposable status, and potential typos.
Key fields vary by endpoint but generally include "email" or "domain," "valid," "risk_score," "deliverability," and specific flags like "disposable" or "role." For batch endpoints, summary fields like "valid_count" and "invalid_count" are also included.
Response data is structured in a JSON format. Each endpoint typically returns a "success" boolean, a "data" object containing relevant details, and a "meta" object with disclaimers. For batch endpoints, results are presented in an array format with a summary at the end.
Parameters vary by endpoint. For example, the Validate Emails Batch endpoint accepts a JSON body with an "emails" array, while the List Disposable Domains endpoint accepts optional "page" and "limit" parameters to control pagination.
Information varies by endpoint. The Validate Email endpoint provides validation results, while the Check MX Records endpoint returns MX record details. The List Free Providers endpoint offers a comprehensive list of known free email providers, including their domains and names.
Data accuracy is maintained through live DNS lookups for MX records and a regularly updated list of disposable domains. The API also employs a structured validation process to ensure that only valid emails and domains are processed.
Typical use cases include verifying email addresses during user registration, cleaning email lists for marketing campaigns, and assessing the quality of leads by checking for disposable or role-based addresses. This helps improve deliverability and engagement rates.
Users can utilize the returned data by analyzing the risk scores and deliverability verdicts to filter out low-quality emails. For example, a high risk score indicates potential issues, allowing users to prioritize valid addresses for communication or marketing efforts.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.
Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.
You can monitor your API usage through the response headers included with every request:
x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.
Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.
Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.
Please have a look at our Refund Policy: https://zylalabs.com/terms#refund