mailboxlayermailboxlayer.com
Email address validation
API keyHTTPSCORS ?
36 APIs
Email APIs fall into three groups: sending transactional and marketing mail, validating addresses, and creating temporary inboxes for testing. For sending, check deliverability features, domain verification and the daily sending limit on the free tier. For validation, see whether the API checks MX records and disposable domains, and how it treats catch-all servers.
A
AGPC Domain Checkguild.tradeuniquecapital.com
Check a domain's SPF, DKIM, DMARC and MX with a graded shareable report
No key HTTPSCORS
A
Atomic Mailatomic-mail.github.io
Email for AI agents: programmatic inbox creation and send/receive over JMAP
API keyHTTPSCORS ?
Best Temp Mailbest-tempmail.com
Disposable inboxes for automated email testing, with OTP extraction
No key HTTPSNo CORS
Cloudmersive Validatecloudmersive.com
Validate email addresses, phone numbers, VAT numbers and domain names
API keyHTTPSCORS
Disbandisban.io
Classify email domains as disposable, free, alias, testing or parked to block fake signups
API keyHTTPSNo CORS
Disifydisify.com
Validate and detect disposable and temporary email addresses
No key HTTPSCORS
DropMaildropmail.me
GraphQL API for creating and managing ephemeral e-mail inboxes
No key HTTPSCORS ?
Email Spam Testeremail-spam-tester.com
Send a test message and get a spam score, 41 checks with RFC citations and a fix plan
No key HTTPSCORS
EmailJSemailjs.com
Send emails directly from client-side JavaScript without a backend server
API keyHTTPSCORS
Email Validationabstractapi.com
Validate email addresses for deliverability and spam
API keyHTTPSCORS
E
Email Validator by LifeStepemail.lifestep.io
Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes
No key HTTPSCORS
E
EVAeva.pingutil.com
Validate email addresses
No key HTTPSCORS
Guerrilla Mailguerrillamail.com
Disposable temporary Email addresses
No key HTTPSCORS ?
ImprovMXimprovmx.com
API for free email forwarding service
API keyHTTPSCORS ?
inboxsinkinboxsink.com
Disposable inboxes for end-to-end tests that wait for the email and extract OTP codes
API keyHTTPSNo CORS
Kickboxopen.kickbox.com
Email verification API
No key HTTPSCORS
K
Kiprio Email Validatekiprio.com
Free email validation: MX check, disposable detection, syntax
API keyHTTPSCORS
mail.gwdocs.mail.gw
10 Minute Mail
No key HTTPSCORS
mail.tmdocs.mail.tm
Temporary Email Service
No key HTTPSCORS
MailboxValidatormailboxvalidator.com
Validate email address to improve deliverability
API keyHTTPSCORS ?
MailCheck.aimailcheck.ai
Prevent users to sign up with temporary email addresses
No key HTTPSCORS ?
Mailfornetmailfornet.com
Disposable inboxes for end-to-end signup tests, with long-polling and HMAC-signed webhooks
API keyHTTPSCORS
MailRambomailrambo.com
Verify email deliverability with a strict yes/no, disposable and catch-all detection
API keyHTTPSNo CORS
MailSenpai DNS Checken.mailsenpai.com
Check a domain's SPF, DKIM, DMARC and MX records and get what to fix, with the values to publish
No key HTTPSCORS
Mailtrapmailtrap.io
Email API and SMTP for sending transactional and bulk emails, with email testing sandbox for safe development
API keyHTTPSCORS ?
PostStackpoststack.dev
EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics
API keyHTTPSNo CORS
RankFabrik Verifyrankfabrik.com
Validate email addresses for deliverability, syntax and disposable detection
API keyHTTPSCORS ?
Sendgriddocs.sendgrid.com
A cloud-based SMTP provider that allows you to send emails without having to maintain email servers
API keyHTTPSCORS ?
Sendinbluedevelopers.brevo.com
A service that provides solutions relating to marketing and/or transactional email and/or SMS
API keyHTTPSCORS ?
SendRavensendraven.ai
Email for AI agents: send email, receive replies as threads, with per-key send limits and approvals
API keyHTTPSNo CORS
SMTPfastsmtpfa.st
Send transactional email, manage contacts and broadcasts, free 3,000 emails/month
API keyHTTPSCORS
TempMailGrabtempmailgrab.com
Disposable inboxes for email testing with OTP extraction and webhooks
API keyHTTPSNo CORS
ucheckerapi.uchecker.net
Bulk email verification with full SMTP server responses
API keyHTTPSCORS ?
V
Verifierverifier.meetchopra.com
Verifies that a given email is real
API keyHTTPSCORS
Xeramail Temp Mailxeramail.com
Temp email address REST API for privacy, testing, automation with OTP extraction
API keyHTTPSNo CORS