TurboTax gets no information from the IRS after you file your tax return. TT would have no knowledge whatsoever about a possible audit in your future. TT does have an add-on feature that includes audit support for which you can pay an extra fee. Is that what your email was about? Did you receive a marketing email?
https://ttlc.intuit.com/turbotax-support/en-us/help-article/intuit-product-orders/max/L0Bc4Ve2l_US_e...
https://ttlc.intuit.com/turbotax-support/en-us/help-article/compare-products/full-audit-representati...
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