emval
emval is a blazingly fast email validator
Decision gist · record as of 2026-08-14
Yes, if you need fast, standards-compliant email validation. The package is actively maintained, has no security vulnerabilities, carries a permissive MIT license, and offers zero runtime dependencies. Install friction is moderate due to compiled wheels, but prebuilt binaries cover common platforms. Best suited for applications requiring high-throughput validation or batch processing with Polars; less necessary if you only validate a few emails per request.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later; precompiled wheels are available for common platforms (macOS, Linux, Windows on x86_64 and ARM), but other architectures may require compilation.
- Medium install friction due to compiled wheels; however, the package is actively maintained with a recent release (2026-08-13) and has no runtime dependencies, making installation straightforward once the appropriate wheel is available for your platform.
License · maintenance · safety
permissive license (permissive) — Licensed under MIT (permissive), allowing unrestricted use, modification, and distribution in both open-source and commercial projects with minimal obligations.
last release 2026-08-13 (1 days) · last repo commit 2026-08-13 · 231 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 218,085 downloads/mo, #9,345 on PyPI
Alternatives
Verify before relying
pip install emval
from emval import validate_email
email = "example@domain.com"
try:
val_email = validate_email(email)
print(val_email.normalized)
except Exception as e:
print(str(e))- Whether domain deliverability checking (MX record verification) is fully implemented or still in development as 'coming soon'.
- Performance claims of '100-1000x faster' relative to python-email-validator—exact benchmarks and test conditions not provided in fact sheet.
- Polars plugin functionality and whether it requires a separate installation step beyond the base emval package.
What it is and what it does
emval is a Rust-based email validator with Python bindings that checks email syntax against RFC 5322 and RFC 6531 standards. It validates both ASCII and internationalized email addresses, normalizes them to a canonical form, and provides detailed error messages when validation fails. The package supports configuration options for handling special cases like quoted local parts, domain literals, and SMTPUTF8 internationalization.
The validator is designed as a drop-in replacement for slower Python validators, with zero runtime dependencies and precompiled wheels for most platforms. It includes a high-performance Polars plugin for batch validation of email addresses in DataFrames, making it suitable for data cleaning and ETL workflows. The package is actively maintained and has no known security vulnerabilities.
Use it for
- Validate user email addresses during account registration or form submission with fast, RFC-compliant syntax checking.
- Batch-validate millions of email addresses in a Polars DataFrame for data cleaning and deduplication pipelines.
- Normalize email addresses to a canonical form for consistent storage and comparison across a database.
- Reject emails with unsafe Unicode characters to prevent display and interpretation security issues.
- Handle internationalized domain names and local parts in applications serving non-ASCII email users.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need fast, standards-compliant email validation.
The package is actively maintained, has no security vulnerabilities, carries a permissive MIT license, and offers zero runtime dependencies. Install friction is moderate due to compiled wheels, but prebuilt binaries cover common platforms. Best suited for applications requiring high-throughput validation or batch processing with Polars; less necessary if you only validate a few emails per request.
Install
emval on PyPI
Before you install
Medium install friction due to compiled wheels; however, the package is actively maintained with a recent release (2026-08-13) and has no runtime dependencies, making installation straightforward once the appropriate wheel is available for your platform.
Requires Python 3.10 or later; precompiled wheels are available for common platforms (macOS, Linux, Windows on x86_64 and ARM), but other architectures may require compilation.
License in practice
Licensed under MIT (permissive), allowing unrestricted use, modification, and distribution in both open-source and commercial projects with minimal obligations.
Quickstart
pip install emval
from emval import validate_email
email = "example@domain.com"
try:
val_email = validate_email(email)
print(val_email.normalized)
except Exception as e:
print(str(e))Verify before relying
- Whether domain deliverability checking (MX record verification) is fully implemented or still in development as 'coming soon'.
- Performance claims of '100-1000x faster' relative to python-email-validator—exact benchmarks and test conditions not provided in fact sheet.
- Polars plugin functionality and whether it requires a separate installation step beyond the base emval package.
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 1 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 218,085 / month, #9,345 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Intended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: MacOSOperating System :: Microsoft :: WindowsOperating System :: POSIX :: LinuxProgramming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyProgramming Language :: RustTopic :: Software Development :: Libraries :: Python Modules |
Evidence: emval-0.1.13-cp314-cp314t-macosx_10_12_x86_64.whl; emval-0.1.13-cp314-cp314t-macosx_11_0_arm64.whl; emval-0.1.13-cp314-cp314t-manylinux_2_12_i686.manylinux2010_i686.whl; emval-0.1.13-cp314-cp314t-manylinux_2_17_aarch64.manylinux2014_aarch64.whl; emval-0.1.13-cp314-cp314t-manylinux_2_17_armv7l.manylinux2014_armv7l.whl; emval-0.1.13-cp314-cp314t-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl; emval-0.1.13-cp314-cp314t-manylinux_2_17_s390x.manylinux2014_s390x.whl; emval-0.1.13-cp314-cp314t-manylinux_2_17_x86_64.manylinux2014_x86_64.whl; emval-0.1.13-cp314-cp314t-musllinux_1_2_aarch64.whl; emval-0.1.13-cp314-cp314t-musllinux_1_2_armv7l.whl; emval-0.1.13-cp314-cp314t-musllinux_1_2_i686.whl; emval-0.1.13-cp314-cp314t-musllinux_1_2_x86_64.whl; emval-0.1.13-cp314-cp314t-win32.whl; emval-0.1.13-cp314-cp314t-win_amd64.whl; emval-0.1.13-cp38-abi3-macosx_10_12_x86_64.whl; emval-0.1.13-cp38-abi3-macosx_11_0_arm64.whl; emval-0.1.13-cp38-abi3-manylinux_2_12_i686.manylinux2010_i686.whl; emval-0.1.13-cp38-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl; emval-0.1.13-cp38-abi3-manylinux_2_17_armv7l.manylinux2014_armv7l.whl; emval-0.1.13-cp38-abi3-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl
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See also email-validator · validate_email · pyIsEmail · rfc3987-syntax · iregexp-check · email-normalize · rigour · rfc3339-validator · mail-parser · language-tags