If you e-filed successfully (accepted), then you don't need to mail anything to the IRS. The only exception to this is if you have something checked off on Form 8453. Use the workaround instructions (attached below) or if you already have it printed, look at Form 8453. If something is checked, it needs to be mailed with Form 8453 to the IRS at this address:
Internal Revenue Service
Attn: Shipping and Receiving
0254 Receipt and Control Branch
Austin, TX 73344-0254
https://ttlc.intuit.com/replies/6629889
