Below you will find the instructions on how to use our API, it's very easy to use and requires SSL. The API requires that you have an active credit balance and will never consume a credit for any unknown result. This endpoint can be called asynchronously and is currently not rate limited.
To test out or API without using credits - Please use the emails provided in our Sandbox Mode (v2)
The response time for our API is between one second and 30 seconds. Since API's are meant to be fast by nature, we limit the amount of time we spend validating an email address. So if we encounter a slow mail server or a mail server with a greylisting algorithm you will get an unknown result. You can always re-validate those conditions, uploading a file to the bulk email validator.
On average 96-98% of all domains will return in 1 to 5 seconds, there are a handful of domains that run off Postfix/Dovecot that have a 20 second connection time for real-time validations and a very small fractional percentage of other domains that are very slow to respond to SMTP inquiries. All the major ISP will return in 1 to 3 seconds, which is usually the majority of most email distribution.
- GET /V2/VALIDATE
API DEFAULT URL: https://api.zerobounce.net/v2/validate
API U.S.A. URL*: https://api-us.zerobounce.net/v2/validate
Below you will find the instructions on how to use our API, it's very easy to use and requires SSL. The API requires that you have an active credit balance and will never consume a credit for any unknown result. This endpoint can be called asynchronously and is currently not rate limited.
*This endpoint uses servers located within the United States. By utilizing this endpoint, you acknowledge and consent to your data being processed on servers in the United States.
URL Parameters
- ParameterDescription
- emailThe email address you want to validate
- ip_addressThe IP Address the email signed up from (Can be blank, but parameter required)
- api_keyYour API Key, found in your account.
- timeoutThe duration (3 - 60 seconds) allowed for the validation. If met, the API will return unknown / greylisted. (optional parameter)
- https://api.zerobounce.net/v2/validate?api_key=replacewithyours&email=valid@example.com&ip_address=156.124.12.145
- https://api-us.zerobounce.net/v2/validate?api_key=replacewithyours&email=valid@example.com&ip_address=156.124.12.145
TO VERIFY AN EMAIL ADDRESS, USE THE FOLLOWING CODES FOR THE FOLLOWING LANGUAGES:
{
"address":"flowerjill@aol.com",
"status":"valid",
"sub_status":"",
"free_email":true,
"did_you_mean":null,
"account":"flowerjill",
"domain":"aol.com",
"domain_age_days": "8426",
"smtp_provider":"yahoo",
"mx_record":"mx-aol.mail.gm0.yahoodns.net",
"mx_found": "true",
"firstname":"Jill",
"lastname":"Stein",
"gender":"female",
"country":"United States",
"region":"Florida",
"city":"West Palm Beach",
"zipcode":"33401",
"processed_at":"2017-04-01 02:48:02.592"
}
{"error":"Invalid API Key or your account ran out of credits"}
// Failure response sample using the API with either method Get
THE API WILL RETURN THESE RESULTS IN A JSON FORMAT USING THE "VALIDATE" METHOD.
JSON Properties
- PropertiesDescription
- addressThe email address you are validating.
- status[valid, invalid, catch-all, unknown, spamtrap, abuse, do_not_mail]
- sub_status[alternate, antispam_system, greylisted, mail_server_temporary_error, forcible_disconnect, mail_server_did_not_respond, timeout_exceeded, failed_smtp_connection, mailbox_quota_exceeded, exception_occurred, possible_trap, role_based, global_suppression, mailbox_not_found, no_dns_entries, failed_syntax_check, possible_typo, unroutable_ip_address, leading_period_removed, does_not_accept_mail, alias_address, role_based_catch_all, disposable, toxic]
- accountThe portion of the email address before the "@" symbol.
- domainThe portion of the email address after the "@" symbol.
- did_you_meanSuggestive Fix for an email typo
- domain_age_daysAge of the email domain in days or [null].
- free_email[true/false] If the email comes from a free provider.
- mx_found[true/false] Does the domain have an MX record.
- mx_recordThe preferred MX record of the domain
- smtp_providerThe SMTP Provider of the email or [null] [BETA].
- firstnameThe first name of the owner of the email when available or [null].
- lastnameThe last name of the owner of the email when available or [null].
- genderThe gender of the owner of the email when available or [null].
- cityThe city of the IP passed in or [null]
- regionThe region/state of the IP passed in or [null]
- zipcodeThe zipcode of the IP passed in or [null]
- countryThe country of the IP passed in or [null]
- processed_atThe UTC time the email was validated.
API Validation V2 Rate Limits
We allow a maximum of 50.000 requests in 10 seconds (validations) for the https://api.zerobounce.net/v2/validate and https://api-us.zerobounce.net/v2/validate* before temporarily blocking for 1 minute.
Bad API key requests to https://api.zerobounce.net/v2/validate and https://api-us.zerobounce.net/v2/validate*200 times in 1 hour will result in a temporary block for 1 hour.
*This endpoint uses servers located within the United States. By utilizing this endpoint, you acknowledge and consent to your data being processed on servers in the United States.