ComponentSpace Email Checker Component
Check email address syntax and validate against the domain’s mail server.
Published by ComponentSpace
Distributed by ComponentSource since 2002
Prices from: $ 195.02 Version: v1.9.0.3 Updated: Aug 15, 2009
ComponentSpace Email Checker Component provides full syntax checking of email addresses as well as domain verification and user name testing using SMTP. Select the level of checking you require from a fast syntax check, to a DNS server MX record lookup to ensure the domain name is valid and a mail server is configured, to finally an SMTP check of the user name against the mail server. Written in 100% managed C# code, the class library offers .NET developers sophisticated email verification from within their applications. Source Code available. ComponentSpace Email Checker Component is 64-bit, .NET Framework 4 and Visual Studio 2010 compatible.
ComponentSpace Email Checker Component may be used in any Windows or Web application by adding a reference to the assembly to access the classes in the KeyTech.EmailChecker namespace. ComponentSpace Email Checker Component is 64bit, .NET framework 4 and VS2010 compatible.
The EmailAddressChecker class lets you specify the type of check to perform. You may choose to check the syntax only, to validate the domain name also, or to do the complete check and validate the email address against the domains mail server.
Checking the syntax is the fastest check at it doesnt require communicating with a remote server. All email address formats, as specified by RFC-2822, are supported. For example, the following are valid email addresses:
Validating the domain name involves communicating with the domain's DNS server and retrieving the MX records that list the domain's mail servers.
Validating the email address involves communicating with the mail server using SMTP (RFC-2821) to attempt to determine whether the email address is valid. No email is sent to the user.
Please note that although the SMTP check can determine whether an email address is bad it cannot guarantee an address is valid as not all mail servers provide notification of invalid user names.
The email check may occur synchronously (blocking) using Check or asynchronously (non-blocking) using BeginCheck and EndCheck. A timeout may be specified.
All classes that raise events support a SynchronizingObject property. All classes report errors through the EmailCheckerException.
Main Features
This class library may also be purchased as part of the ComponentSpace .NET Internet Suite.