If you need to solve a captcha, then you use the module. If you don't need to solve a captcha, then you don't use it)
There is no specific answer to your question, it all depends on the site you work with.
MAIL MODULE
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MAIL is used to receive and process the content of letters in mail services. For example, if you register accounts on any sites where you receive registration confirmation letters or a special confirmation code. This module is equipped with all the necessary functionality for this kind of tasks, it is completely free and comes in the official BAS assembly.
More information in telegram chat @bas_english