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A spambot is a computer program designed to facilitate Spamming. Spambots create accounts and usually send unsolicited messages to other users. Web hosts and website operators have banned spammers, resulting in an ongoing battle as spammers try to circumvent bans and anti-spam measures, while hosts work to prevent these tactics.
Various methods have been developed to combat spambots, including Address munging. This technique involves intentionally altering an email address to make it readable to humans or human-controlled , while preventing spambots from interpreting it. This has led to the development of advanced spambots that can extract email addresses from munged character strings or Screen scraping them from text rendered in a web browser. Alternative techniques for displaying email addresses on a web page include using an image, a text logo with inline CSS, or jumbling the characters and rearranging them with CSS for display.
To prevent spambots from creating automated posts, requiring users to confirm their intention to post via email can be an effective measure. Spambot scripts often use fake email addresses, making it unlikely for them to receive and respond to an email confirmation request. Some spambots can bypass this step by providing a valid email address for validation, often using webmail services. Security questions can help prevent spam generated by spambots during registration. Consistent posting of spam on forums may result in the user being labeled as a "spambot".
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