Mail arrives in SPAM on Yahoo

[alecksievici]

well since i said i'll keep you up to date with my progress here we go:

senderbase replyed: they said there's nothing they can do, yahoo has it's own policy.

yahoo replyed and asked me a question: How many bounced emails are required before you consider an email
address to be inactive and subject to removal from your list for soft and hard bounces?

after searching on the internet i found 2 things:
1a. A soft bounce is an e-mail message that gets as far as the recipient's mail server, but is bounced back before it reaches the recipient.
1b. A hard bounce is an e-mail message that has been returned to you because the recipient's address is invalid.

2. The default (i guess) options are: soft bounces: 3, hard bounces: 1

since i'm new at this mailing stuff i have a question of my own: where these soft/hard bounces options are set?