Free email validator software for windows

Expert Email Validator gives you the possibility to check your email addresses by verifying their syntax, domain and account availability, making your email database more accurate and reliable.
It can verify and clean up mailing list and avoiding Bounce-back / Undelivered emails from your mail box. You must try it!
Expert Email Validator is a simple and very powerful tool for anyone to check email addresses from email lists, determine if the emails are valid or not and manage email lists.
Expert Email Validator is easy to use and reliable. It can fast verify and clean up mailing list and avoiding Bounce-back / Undelivered emails from your mail box. There is no need to disturb contacts just to verify their addresses since Expert Email Validator check email validity without sending any message.
Main features:
- Email Verification
- Verify email addresses (including Yahoo mail) for undeliverable email.
- Multithread Connections
- More connections will use more system resources and internet bandwidth, but it will speed up the validating speed. Recommended maximum 50 connections.
- Manage Emailing Lists
- Handle unlimited size email lists;
- Importing Emailing Lists
- Import and export email lists from/to .TXT files ;
- Filtering
- Once the addresses have been validated, you can save the valid or the invalid email addresses in separate files or work sheets.
- Retrying
- After the first validation, invalid email addresses can be rechecked to avoid temporary problems on the Internet.
- Graylist Validation
- By using Retry feature on the second or third retry, emails on servers using graylisting wil be validated OK.

Validator - Verify the authenticity of files Whenever a file is created it is assigned a unique serial number or "CRC" (Cyclic Redundancy Check). If the file is modified in any way it is given a new CRC.
Using Validator you can create your own CRC or Signature for a file or group of files. This Signature is saved as a .SFV file (Simple File Verifier).
When the SFV is opened by using the program or double clicking it gets the CRC of the files and compares it to the original. If any of the files have been changed it will determine which one has as well as any that are missing.