mailboxlayer
API · Email & CommunicationEmail address validation.
Search and filter on the server without downloading the full catalog.
Email address validation.
Check a domain's SPF, DKIM, DMARC and MX with a graded shareable report.
Email for AI agents: programmatic inbox creation and send/receive over JMAP.
Validate email addresses, phone numbers, VAT numbers and domain names.
Validate and detect disposable and temporary email addresses.
GraphQL API for creating and managing ephemeral e-mail inboxes.
Send emails directly from client-side JavaScript without a backend server.
Validate email addresses for deliverability and spam.
Validate email addresses.
Disposable temporary Email addresses.
API for free email forwarding service.
Email verification API.
Free email validation: MX check, disposable detection, syntax.
10 Minute Mail.
Temporary Email Service.
Validate email address to improve deliverability.
Prevent users to sign up with temporary email addresses.
Email API and SMTP for sending transactional and bulk emails, with email testing sandbox for safe development.
EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics.
A cloud-based SMTP provider that allows you to send emails without having to maintain email servers.
A service that provides solutions relating to marketing and/or transactional email and/or SMS.
Bulk email verification with full SMTP server responses.
Verifies that a given email is real.
Phone number validation and carrier lookup API with global coverage.
Phone number validation.
Validate international phone numbers.
Rest Api for Phone specifications.
Validate phone numbers globally.
Phone number validation & carrier lookup.
CNAM caller ID, carrier/LRN lookup and spam scoring for North American phone numbers.
Send transactional email, manage contacts and broadcasts, free 3,000 emails/month.