Suomispam tracks spam aimed at Finland or written in Finnish, and it lists spam sources, the networks behind them, and the services that support them. Listings don't expire on a schedule, so you'll need to ask.
Email Suomispam; there's no form. It delists an IP once it's convinced the spam problem is dealt with. A credible note from your network operator may be enough, but bad cases need proof, and delisting can wait if your provider still hosts the spammer.
Suomispam doesn't carve single IPs out of a network listing, so if you're caught in one, your hosting provider has to fix it. Fixing SPF or DMARC won't help: Suomispam lists spam sources, and authentication settings don't change that.
Suomispam reviews listings on a cycle that can run several months. Generator Labs checks your IPs and domains against Suomispam and hundreds of other blacklists and alerts you by email, Slack, SMS, or webhook when a listing appears. Free for your first host.
Not on a set schedule. Reviews run every few months.
No. Suomispam lists spam sources.
Ask your hosting provider; Suomispam won't delist single IPs from a network listing.