Add an email sending package to the project

Hello contributors, i want someone to add an email sending service to user, either to confirm their email or other purpose, will you be able to do that ??

The issue names no files, tests, or entry points. Start by reviewing the existing user flow in this MERN chat application and clarify which email provider, confirmation behavior, and other purposes are required; done should include an agreed scope and working email delivery for the selected user flow.

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