From the spamcop.net Web site:
If you have stopped the spam, you will be delisted automatically a maximum of 48 hours from the most recent spam complaint. Please do not write asking to be delisted sooner unless you believe there is some error in SpamCop's logic. Systems known to send spam are listed for up to 48 hours even if there is a "resolution" to the "issue". Often, what happens once can happen again.
Does this mean that after 2 days, we will be automatically removed? That's what it seems to say, but does that mean people can spam, get blacklisted for 2 days, spam, get blacklisted for 2 days, and on and on?
Stop the spam (reports). Barring any unusual circumstances (you receive erroneous spam reports), this is your only option. Secure open relays and kick the spammers off your servers - and keep them off!
If you have recently closed an open relay, check to see if it is listed with www.ordb.org (off site link). If it is listed, ask for a re-test. Once ordb has certified your relay as secure, return to http://spamcop.net/bl.shtml to expedite the removal of your server from the list. Or just wait the 48 hours and it will be delisted automatically.
What is the deal with "open relays?" What do I need to do to secure them?
David