apetaster

Hello:

Work related - I'm looking for an application that will automatically check the validity of email addresses from a
database we have at work. (This has nothing to do with spam, etc - my company does some CRM work and we want to be able to tell when an individual email is no longer available so we can update their status in our CRM DB.)

I'm less interested in the syntax based apps (e.g. does the address have a "@" and a "." and not interested in the domain level tools (checking if ibm.com is a valid domain) but rather
AM interested in tools which will effectively ping entire email addresses themselves and report back those which are dead.

This needs to be invisible to our clients (those with the email addresses) b/c we don't want to spam them and a version which could be scripted/scheduled for a UNIX environment is preferable to one which requires a person to shepherd the process manually (using a UI.)

Does what I am looking for even exist?
(PS - already checked out and passed on:
Fast Email Verifier Pro
Advanced Email Verify
Advanced Email Verifier
High Speed Verifier
DOTS for Email Validation)

Thanks in advance for any leads!
Apetaster