Code to extract email addresses from our E-commerce portal

Need assistance writing code to extract the email addresses from html source of 2,000+ back end pages i.e. view-source:[login to view URL] to view-source:[login to view URL] then extract the email addresses from the page using code or a utility like [login to view URL] I've been manually extracting the emails using [login to view URL] and pasting in the view source of each page to compile our customer mailing list, but with 2,000 plus pages it's too time consuming. Need help with scripting. Will provide credentials to get into the e-commerce site, but we do not have database access, just access to the emails in the source of the webpages. Just need the compiled list of email addresses in a text file. If you can include the name with the email even better, but not required.