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Scrapebox allows you to scrape emails and you can scrape targeted emails from your keywords based on locations or just keywords in general.

NOTE: Google maps scraping is no longer working or available.

Custom Harvester Video:
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Grab Emails Video:
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This video covers step by step how to take your target keywords / niche and scrape either google front end or scrape google maps and then extract internal pages and then extract emails from those pages.

I cover multiple methods with multiple variations as well as tips along the way for general scrapebox usage.

I do not cover how to actually send the mails. You should be aware that laws regarding sending mails vary by country so check with your specific country to see what laws may be applicable to sending mails.