No, you don't need to mail Form 8453-PE - IRS. Form 8453 authenticates an electronic Form 1065, U.S. Return of Partnership Income. During the e-file process, TurboTax would have instructed you to print the form, sign it, scan it, upload it, and attach it to your Form 1065.
When I transmitted my 1065 return Turbo Tax asked me to make a change which I did, and it did ask me after that if I needed to redo the 8453 and I mistakenly said know. Then I noticed my income was reduced by $111. So I have to redo just the 8453PE to reflect the correct amount. However Turbo Tax Business does not let you resign and resend the 8453PE and there is no way to correct under the Amended return instructions
The Form 8453-PE is used by the preparer (TurboTax) to obtain authorization from the customre to transmit returns to the IRS. Don't worry about this form, you don't have to e-file it or send it by mail.