Mailboxlayer
Vienna email validation API with a free request allowance
Quick Overview
| Company | apilayer Data Products GmbH |
|---|---|
| Category | Email Verification Tools |
| Headquarters | Vienna, Austria |
| Founded | Not stated |
| EU Presence | Yes - Austria (EU) |
| Data Location | not stated on the pages we read |
| Open Source | No |
| GDPR Compliant | Yes |
| Self-Hosting | No |
| Main Features | Syntax and typo check, MX record check, real-time SMTP check, catch-all detection, role detection, free and disposable provider database, quality score, 256-bit HTTPS |
| Pricing | Free plan; the home page offers 1,000 free requests a month and subscriptions from USD 9.99; the pricing page lists Basic at USD 14.99 a month (5,000 requests) and Professional Plus at USD 74.99 a month (50,000 requests) |
| Best For | Developers who need a small API for form validation |
| Replaces | ZeroBounce |
Detailed Review
Mailboxlayer is operated by apilayer Data Products GmbH, FN 532531i, Elisabethstrasse 15/5, 1010 Vienna, Austria. The terms place disputes with the courts of Austria. The site describes apilayer as an Austrian technology company registered in Vienna.
The product is a single REST API that returns JSON with fields such as format_valid, mx_found, smtp_check, catch_all, role, disposable, free and a score. It has no bulk upload tool on the pages we read.
What the API returns
Each request returns a quality score and flags for syntax, MX records, SMTP check, catch-all, role, disposable and free providers, plus a did-you-mean suggestion for typos. The provider database is described as updated daily.
Plans in dollars
The home page and the pricing page disagree on the entry numbers. The home page names 1,000 free monthly requests and subscriptions from USD 9.99. The pricing page lists Basic at USD 14.99 a month for 5,000 requests, with Professional Plus at USD 74.99 for 50,000.
Compared with ZeroBounce
Mailboxlayer is an API only and has no list-cleaning interface, warmup or monitoring. ZeroBounce offers all of those. The European entity is Austrian, but the pages read do not name the owner of apilayer.
Limitations to Consider
The home page and pricing page show different entry prices and free allowances. The terms were last modified 17-02-2018, and the privacy policy says data is transferred to US service providers. The ultimate owner of apilayer is not stated on the pages we read, and there is no bulk list tool.
Who Should Use Mailboxlayer
Developers who want a plain validation API from an Austrian GmbH. For list uploads see Verifalia.
Pros and Cons
Pros
- Austrian GmbH with commercial register number
- Free plan available
- Catch-all and SMTP checks in the API
- Quality score and typo suggestions
- Low entry price
Cons
- Conflicting prices between pages
- No bulk interface
- Terms dated 2018
- Owner not stated
Alternatives to Mailboxlayer
Other European email verification tools worth comparing before you decide:
See all European email verification tools or compare them directly against ZeroBounce on our alternatives page.
Frequently Asked Questions
apilayer Data Products GmbH of Vienna, Austria, registered as FN 532531i.
Yes. The home page offers 1,000 free requests a month, while the pricing page shows a Free Plan with a smaller number, so check before relying on either.
The pages we read describe an API only, so bulk list cleaning needs your own script.