grepWin - grepWin is a simple search and replace tool which can use PCRE regular expressions to search for...
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
PowerGREP - Quickly search through large numbers of files on your PC or network using powerful text patterns to find exactly the information you want. Search and replace with plain text or regular expressions to maintain web sites, source code, reports, ...
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
dnGREP - dnGrep allows you to search across files with easy-to-read results.
DeBounce - Email Validation, Email Checker, Data Enrichment and Appending Tool. Using DeBounce remove invalid, disposable, spam-trap, syntax and deactivated emails.