You might start with HTML::Parser or HTML::TokeParser (the latter is a "simple" version of the former).

Grabbing all <a href="mailto:*"> type flags is the only "ethical" way to grab emails from the web-- and even then, email addresses often show up in such tags without the explicit consent of the owner of the email address. Make sure to validate them, since many of us hate getting email at autostripped addresses and butcher our tags accordingly. My suggestion is to drop all invalid addresses, since that is a signal that these addresses are meant only for human consumption.

Update: I want to second davorg's sentiment below. Only once, a very long time ago, did I ever receive an email from a web bot that was acceptable-- it told me about some broken links on my page... and then, of course, tried to sell me something. Which got the sender into the killfile pretty quickly.

In reply to Re: Perl Programs that can retrieve email addresses from web pages by ichimunki
in thread Reaped: Perl Programs that can retrieve email addresses from web pages by NodeReaper

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