PA dep of revenue asking for Social Security Cards ,Birth Certificates ,and federal 1040 ? asking to send to E-mail: xx-xxxxxxxxxxxxxxxxxx@xx.xxx ?

Be careful it's probably a scam.  It is not safe to email any personal info like that.  Look up a real phone number on their official website and call them and ask.

Maybe you can.  I found this info.  But as I said it's not safe to email that info.  I would take it in person or mail it to the address at the top

https://revenue-pa.custhelp.com/app/answers/detail/a_id/341/~/i-received-a-letter-asking-for-additional-information.-where-do-i-mail-my