Does IRS send confirmation letter for form 3520 received

[Margareth10]

Hi

Do we get a confirmation letter from IRS for receipt of our Form 3520? I mailed it in by USPS (I don't have that receipt anymore). Actually, my accountant doesn't remember if he mailed it in - it was 2 years ago. 

How do I find out if they received it? The regular IRS website doesn't show anything about 3520. I didn't get any confirmation letter that they received it. This has been 2 years ago already.