Real-time verification of email addresses

With our email verification, if users enter invalid email addresses, you can ask them to correct them before submitting a form or order.

Examples
info@endereco.de
sadf@asdf.de

Try it yourself

What are the advantages of email validation

endereco's email validation detects misspelled, invalid or undeliverable email addresses in real time as they are entered.

A multi-stage review process evaluates each email based on various criteria.

Only reachable email addresses in your database

This is how you reach your customers via email and prevent fake emails or misspellings.

Less manual research effort

If you only have a postal address of your customer in addition to the e-mail address, contacting them is very time-consuming and hardly traceable - so it's best to check beforehand and save follow-up costs.

Optimized customer communication

With a valid e-mail address, you ensure smooth communication with your customers. Status updates on shipments or appointments really get through.

Fraud prevention

If email addresses and other customer master data are verified, this acts as a deterrent to fraudsters and thus reduces the risk of automated bot orders or cybercrime.

Now 30 days use free of charge

- try our services in your test or live system

Test our service without risk!

Fair success-based billing

If possible, we charge according to the number of successfully completed registrations. Only then will the service used be charged.

No automatic start of contract after end of test

After the 30-day trial period, you alone decide whether you want to continue using the service for a fee. No further obligations arise without your consent.

No contract commitment

We bill you monthly for the conducted address checks. If you deactivate the service, no further costs are incurred.

No hidden fees

Our services are billed exclusively according to usage. No basic fee, minimum turnover or fixed costs.

How does endereco's email validation work?

Each e-mail address is first checked for correct syntax. A valid e-mail address always consists of an "@", a prefix in front of it and the domain behind it. The top-level domain, which usually stands for a country or a company, is separated by a dot.

The mail server of each domain gives different feedback on the mailboxes available there, depending on the configuration.
This allows you to detect invalid email prefixes and to identify full or undeliverable mailboxes.

The MX record of a mail server tells under which "Fully Qualified Domain Name" the mail server can be reached for a domain or subdomain. Only if this is valid can the e-mail actually be delivered to the domain.

A comparison with different blacklists detects one-time addresses or e-mail addresses that are on SPAM lists. These are not always serious and should at least be internally marked or excluded.

We then check the email for a valid top-level domain. The "top-level domains" are managed centrally by IANA (Internet Assigned Numbers Authority) and are constantly updated. As of July 2019, there are 1,530 valid top-level domains registered worldwide; some have since been deleted and are therefore invalid.

Checking the mail server - short and sweet

Our service tries to send a message to mail server and processes its response. According to the mail server responses, it is possible to determine the validity of the email address with great accuracy.

As a result of our effective email address verification, you will have clean and up-to-date data of your customers!

Things to know about TOP Level Domains

Internet top-level domains are managed in the so-called Root Zone Database by IANA and can be distinguished on the basis of various criteria.

  • Country domains (e.g. .de, .at or .ch) consist of 2 letters
  • internationalized TLDs (e.g. xn--fiqs8s stands for .中国 China)
  • ICANN generic TLDs (e.g. .appartments)
  • internationalized generic TLDs (for Chinese or Cyrillic scripts)
  • geographic TLDs that can be registered per country or continent (in Germany, for example, .berlin or .amsterdam)
  • TLDs of trademarks (e.g. .axa or .bently)
  • Special forms of domains (e.g. .local or .localhost) that are used separately

Other endereco services

Numerous services for master data validation are available to you.

Input Assistant

Support the input with address suggestions for zip code, city and street.

Check address

Correct postal addresses nationally & internationally.

Check phone number

Check phone numbers for accessibility and standardize the spelling.

Integrations

There are several ways to integrate Endereco's address validation. We offer our API, as well as numerous ready-made solutions as plug & play modules.

Knowledge and download area

Here you can find all important information about our product world, as well as all available Plug & Play modules and JSON API.