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1/7/2026•10 min read
Email & Phone Validation: API Solutions 2026
4-level email validation: syntax check, domain verification, disposable email detection, SMTP validation. Phone validation with carrier lookup.
Email ValidationAPISMTP
Email & Phone Validation: API Solutions 2026 ✉️
Introduction
Marketing costs money. Sending SMS to dead numbers or emails to bounces drains budget and hurts sender reputation. A clean list is key.
Email Validation Levels
- Syntax: Regex check.
- MX Record: Does the domain handle mail?
- SMTP Handshake: Pinging the server "Does user exist?" without sending mail. Most accurate.
- Disposable Check: Filtering temp mails.
Phone Validation (HLR Lookup)
HLR queries the mobile network database:
- Is number active?
- Roaming status?
- Original carrier?
Why Use It?
- Save Money: Don't SMS landlines/dead numbers.
- Inbox Rate: Remove bounces to keep high sender score.
Solutions
Use MMAS API for batch validation.