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This tool is only available in English and Czech and provides an interface completely clean of advertising. To extract all mail addresses that a text block contains, simply paste the text in the text box, select extraction options and click OK.
These options allow you to:
Sort the results alphabetically
Extract email addresses only
Convert the results to lowercase
Choose the delimiter that you want (comma, period, newline, etc.)
Group results (eg, block 50) and to choose the bounding group
*image is a screenshot from original site*
Source link: http://email-extractor.pavucina.com/en/