This C# library provides an easy way to call the MailboxValidator API which validates if an email address is a valid one.
This library can be used in many types of projects such as:
- validating a user's email during #
- cleaning your mailing list prior to an email marketing campaign
- a form of fraud check
Just open the solution file in Visual Studio 2022 or later and compile:
An API key is required for this library to function.
Go to https://www.mailboxvalidator.com/plans#api to # for a FREE API plan and you'll be given an API key.
using Newtonsoft.Json;
using MailboxValidator;
var apikey = "PASTE_YOUR_API_KEY_HERE";
var email = "example@example.com";
SingleValidation mbv = new SingleValidation(apikey);
var mytask = mbv.ValidateEmailAsync(email); // async API Call
var myobj = mytask.Result;
Console.WriteLine(JsonConvert.SerializeObject(myobj, Formatting.Indented)); // to pretty-print the JSON
Console.WriteLine("email_address:" + myobj["email_address"].ToString());
Console.WriteLine("domain:" + myobj["domain"].ToString());
Console.WriteLine("is_free:" + myobj["is_free"].ToString());
Console.WriteLine("is_syntax:" + myobj["is_syntax"].ToString());
Console.WriteLine("is_domain:" + myobj["is_domain"].ToString());
Console.WriteLine("is_smtp:" + myobj["is_smtp"].ToString());
Console.WriteLine("is_verified:" + myobj["is_verified"].ToString());
Console.WriteLine("is_server_down:" + myobj["is_server_down"].ToString());
Console.WriteLine("is_greylisted:" + myobj["is_greylisted"].ToString());
Console.WriteLine("is_disposable:" + myobj["is_disposable"].ToString());
Console.WriteLine("is_suppressed:" + myobj["is_suppressed"].ToString());
Console.WriteLine("is_role:" + myobj["is_role"].ToString());
Console.WriteLine("is_high_risk:" + myobj["is_high_risk"].ToString());
Console.WriteLine("is_catchall:" + myobj["is_catchall"].ToString());
Console.WriteLine("mailboxvalidator_score:" + myobj["mailboxvalidator_score"].ToString());
Console.WriteLine("time_taken:" + myobj["time_taken"].ToString());
Console.WriteLine("status:" + myobj["status"].ToString());
Console.WriteLine("credits_available:" + myobj["credits_available"].ToString());Creates a new instance of the MailboxValidator object with the API key.
Performs email validation on the supplied email address.
The input email address.
The domain of the email address.
Whether the email address is from a free email provider like Gmail or Hotmail.
Return values: True, False
Whether the email address is syntactically correct.
Return values: True, False
Whether the email address has a valid MX record in its DNS entries.
Return values: True, False, - (- means not applicable)
Whether the mail servers specified in the MX records are responding to connections.
Return values: True, False, - (- means not applicable)
Whether the mail server confirms that the email address actually exist.
Return values: True, False, - (- means not applicable)
Whether the mail server is currently down or unresponsive.
Return values: True, False, - (- means not applicable)
Whether the mail server employs greylisting where an email has to be sent a second time at a later time.
Return values: True, False, - (- means not applicable)
Whether the email address is a temporary one from a disposable email provider.
Return values: True, False, - (- means not applicable)
Whether the email address is in our blacklist.
Return values: True, False, - (- means not applicable)
Whether the email address is a role-based email address like admin@example.net or webmaster@example.net.
Return values: True, False, - (- means not applicable)
Whether the email address contains high risk keywords.
Return values: True, False, - (- means not applicable)
Whether the email address is a catch-all address.
Return values: True, False, Unknown, - (- means not applicable)
Email address reputation score.
Score > 0.70 means good; score > 0.40 means fair; score <= 0.40 means poor.
The time taken to get the results in seconds.
Whether our system think the email address is valid based on all the previous fields.
Return values: True, False
The number of credits left to perform validations.
using Newtonsoft.Json;
using MailboxValidator;
var apikey = "PASTE_YOUR_API_KEY_HERE";
var email = "example@example.com";
SingleValidation mbv = new SingleValidation(apikey);
var mytask = mbv.DisposableEmailAsync(email); // async API Call
var myobj = mytask.Result;
Console.WriteLine(JsonConvert.SerializeObject(myobj, Formatting.Indented)); // to pretty-print the JSON
Console.WriteLine("email_address:" + myobj["email_address"].ToString());
Console.WriteLine("is_disposable:" + myobj["is_disposable"].ToString());
Console.WriteLine("credits_available:" + myobj["credits_available"].ToString());Creates a new instance of the MailboxValidator object with the API key.
Check if the supplied email address is from a disposable email provider.
The input email address.
Whether the email address is a temporary one from a disposable email provider.
Return values: True, False
The number of credits left to perform validations.
using Newtonsoft.Json;
using MailboxValidator;
var apikey = "PASTE_YOUR_API_KEY_HERE";
var email = "example@example.com";
SingleValidation mbv = new SingleValidation(apikey);
var mytask = mbv.FreeEmailAsync(email); // async API Call
var myobj = mytask.Result;
Console.WriteLine(JsonConvert.SerializeObject(myobj, Formatting.Indented)); // to pretty-print the JSON
Console.WriteLine("email_address:" + myobj["email_address"].ToString());
Console.WriteLine("is_free:" + myobj["is_free"].ToString());
Console.WriteLine("credits_available:" + myobj["credits_available"].ToString());Creates a new instance of the MailboxValidator object with the API key.
Check if the supplied email address is from a free email provider.
The input email address.
Whether the email address is from a free email provider like Gmail or Hotmail.
Return values: True, False
The number of credits left to perform validations.
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