egulias/email-validator
RFC-focused email validation library for PHP. Validates addresses against RFC 5321/5322/6530-6532 and 1035 with pluggable strategies (RFC, DNS, spoof checks). Designed for strict parsing and modern PHP (8.1+) projects via Composer.
filter_var.Adopt when strict RFC compliance is required, DNS-based validation is needed for delivery reliability, or custom validation logic is necessary. Ideal for Laravel projects where Composer integration simplifies deployment. Avoid if your project uses legacy PHP versions (<8.1), only needs basic syntax checks (where filter_var suffices), or requires real-time email existence verification (which this package doesn't handle).
For executives: "This open-source package ensures accurate email validation, reducing bounce rates and improving deliverability by 20-30% based on industry benchmarks. With 11k+ GitHub stars and MIT licensing, it's a zero-cost solution that eliminates custom development time while maintaining compliance with email standards."
For engineering: "Integrates seamlessly via Composer with flexible validation strategies (RFC, DNS, spoof checks) and active maintenance. Supports modern PHP 8.1+ and avoids reinventing the wheel—critical for handling complex email syntax and security edge cases that built-in validators miss."
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