Returned to sender, mailed 1 Apr. Yes with correct postage.
@edlesterspain
Check the very bottom of the page at the link below, for filing from a foreign location
Depends on whether you a e sending in a payment or not...
Also
If using the Austin address, they use different zip-extension when filing from a foreign location vs a US location:
Where to file addresses for taxpayers and tax professionals filing form 1040 | Internal Revenue Service (irs.gov)