Can I airdrop a frozen Master Edition token?

Question

If I create an NFT by setting mintAuthority to null and foregoing a metaplex Master Edition, I retain the ability to arbitrarily freeze and thaw NFTs so long as I retain freezeAuthority on the token (and no one else can change that). I've used this to various effects so far.

If I instead set a Master Edition on the token, I can only freeze it if I am the delegate of - I believe - the associated token account I mint the NFT to. And - I believe - I cannot set the delegate of that account without its owner's signature, which I do not have.

I understand that an existing NFT owner can delegate freeze authority to someone (e.g. escrowless marketplace contract), but I don't see a way to do this as part of an airdrop.

Answer 1

That's right the wallet you are going to airdrop the NFT has to approve either your contract or some other address to manage that NFT and then you can call this ix to freeze it

    // freeze Signer ATA
invoke_signed(
    &freeze_delegated_account(
        *ctx.accounts.token_metadata_program.key,
        ctx.accounts.rent_manager.key(),
        ctx.accounts.renter_ata.key(),
        *ctx.accounts.edition_info.key,
        ctx.accounts.nft_mint.key(),
    ),
    &[
        ctx.accounts.rent_manager.to_account_info(),
        ctx.accounts.renter_ata.to_account_info(),
        ctx.accounts.edition_info.to_account_info(),
        ctx.accounts.nft_mint.to_account_info(),
    ],
    &[rent_manager_seeds],
)?;