How to validate email addresses in Salesforce Apex

Email validation is a great tool, but all too often it functions only syntactically by simply checking the format of the address in question. A more robust system with automated server querying is quite a bit more difficult to implement, however. That’s why today we are demonstrating how to use one of our APIs to get the ideal results in a fraction of the time.

We begin by downloading the Cloudmersive API client for validation and then copying the /client folder from our archive into the project’s folder.

With our client in place, we are now in a position to call emailFullValidation:

SwagEmailApi api = new SwagEmailApi();
SwagClient client = api.getClient();
// Configure API key authorization: Apikey
ApiKeyAuth Apikey = (ApiKeyAuth) client.getAuthentication('Apikey');
Apikey.setApiKey('YOUR API KEY');
Map<String, Object> params = new Map<String, Object>{
'email' => 'email_example'
};
try {
// cross your fingers
SwagFullEmailValidationResponse result = api.emailFullValidation(params);
System.debug(result);
} catch (Swagger.ApiException e) {
// ...handle your exceptions
}

Here is an example result, so you can see the information provided.

{
  "ValidAddress": true,
  "MailServerUsedForValidation": "string",
  "Valid_Syntax": true,
  "Valid_Domain": true,
  "Valid_SMTP": true,
  "IsCatchallDomain": true,
  "Domain": "string",
  "IsFreeEmailProvider": true,
  "IsDisposable": true
}

Done!