Email Verifier - Swift Library

Verify email addresses in real time. Check deliverability, detect disposable and catch-all domains, and clean your email lists before sending.

Powered by Enrow -- real-time SMTP-level verification with high accuracy on catch-all domains.

Installation

Add the package with Swift Package Manager:

dependencies: [
    .package(url: "https://github.com/EnrowAPI/email-verifier-swift", from: "1.0.0"),
]

Requires Swift 5.9+. Zero dependencies -- uses only Foundation URLSession.

Simple Usage

import EmailVerifier

let verification = try await EmailVerifier.verify(
    apiKey: "your_api_key",
    email: "tcook@apple.com"
)

let result = try await EmailVerifier.getResult(apiKey: "your_api_key", id: verification.id)

print(result.email)         // tcook@apple.com
print(result.qualification) // valid

verify returns a verification ID. The verification runs asynchronously on the server -- call getResult to retrieve the result once it is ready. You can also pass a webhook URL to get notified automatically.

Bulk verification

let batch = try await EmailVerifier.verifyBulk(
    apiKey: "your_api_key",
    verifications: [
        BulkVerification(email: "tcook@apple.com"),
        BulkVerification(email: "satya@microsoft.com"),
        BulkVerification(email: "jensen@nvidia.com"),
    ]
)

// batch.batchId, batch.total, batch.status

let results = try await EmailVerifier.getBulkResults(apiKey: "your_api_key", id: batch.batchId)
// results.results -- array of VerificationResult

Up to 5,000 verifications per batch. Pass a webhook URL to get notified when the batch completes.

Error handling

do {
    let _ = try await EmailVerifier.verify(
        apiKey: "bad_key",
        email: "test@test.com"
    )
} catch let error as EmailVerifierError {
    print(error.statusCode) // HTTP status code
    print(error.message)    // API error description
    // Common errors:
    // - "Invalid or missing API key" (401)
    // - "Your credit balance is insufficient." (402)
    // - "Rate limit exceeded" (429)
}

Getting an API key

Register at app.enrow.io to get your API key. You get 50 free credits (= 200 verifications) with no credit card required. Each verification costs 0.25 credits.

Paid plans start at $17/mo for 1,000 credits up to $497/mo for 100,000 credits. See pricing.

Documentation

• Enrow API documentation
• Full Enrow SDK -- includes email finder, phone finderand more

License

MIT -- see LICENSE for details.