mailboxlayer
Email address validation
Email · API key · HTTPS
Email APIs
26 API records with directory-reported descriptions, access facts, and source links.
AGPC Domain Check
Check a domain's SPF, DKIM, DMARC and MX with a graded shareable report
Email · No auth · HTTPS
Atomic Mail
Email for AI agents: programmatic inbox creation and send/receive over JMAP
Email · API key · HTTPS
Best Temp Mail
Disposable inboxes for automated email testing, with OTP extraction
Email · No auth · HTTPS
Cloudmersive Validate
Validate email addresses, phone numbers, VAT numbers and domain names
Email · API key · HTTPS
Disify
Validate and detect disposable and temporary email addresses
Email · No auth · HTTPS
DropMail
GraphQL API for creating and managing ephemeral e-mail inboxes
Email · No auth · HTTPS
EmailJS
Send emails directly from client-side JavaScript without a backend server
Email · API key · HTTPS
Email Validation
Validate email addresses for deliverability and spam
Email · API key · HTTPS
EVA
Validate email addresses
Email · No auth · HTTPS
Guerrilla Mail
Disposable temporary Email addresses
Email · No auth · HTTPS
ImprovMX
API for free email forwarding service
Email · API key · HTTPS
inboxsink
Disposable inboxes for end-to-end tests that wait for the email and extract OTP codes
Email · API key · HTTPS
Kickbox
Email verification API
Email · No auth · HTTPS
Kiprio Email Validate
Free email validation: MX check, disposable detection, syntax
Email · API key · HTTPS
mail.gw
10 Minute Mail
Email · No auth · HTTPS
mail.tm
Temporary Email Service
Email · No auth · HTTPS
MailboxValidator
Validate email address to improve deliverability
Email · API key · HTTPS
MailCheck.ai
Prevent users to sign up with temporary email addresses
Email · No auth · HTTPS
Mailtrap
Email API and SMTP for sending transactional and bulk emails, with email testing sandbox for safe development
Email · API key · HTTPS
PostStack
EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics
Email · API key · HTTPS
Sendgrid
A cloud-based SMTP provider that allows you to send emails without having to maintain email servers
Email · API key · HTTPS
Sendinblue
A service that provides solutions relating to marketing and/or transactional email and/or SMS
Email · API key · HTTPS
SMTPfast
Send transactional email, manage contacts and broadcasts, free 3,000 emails/month
Email · API key · HTTPS
uchecker
Bulk email verification with full SMTP server responses
Email · API key · HTTPS
Verifier
Verifies that a given email is real
Email · API key · HTTPS