How do I remove IP from sorbs.net blacklist?

Our email server has ended up in the sorbs.net blacklist and we're going round in circles trying to get it removed, currently this is causing down-time between our suppliers.

I am a developer and not familiar with Sorbs but asked if I could take a look at it.

UPDATE: Our admins have determined that sorbs have resolved the issue.

From serverfault Brett Ryan

• Did you look at their de-listing page? There's a big black "De-List an IP Address" button there. I'd guess that in order to get de-listed, they'll run a test again to verify that you're not exhibiting the same behavior that got you listed in the first place.

  Brett Ryan : What seems to be happening is we keep going round in circles on the page with a login then an error, login, then timeout, login.. we're going nuts. It turns out that the admin finally using this method finally got to a point where he could enter the IP address and found it's an IP range and is currently talking with Telstra to try and resolve the issue.
  From ErikA

• I'm having this exact same problem! We are listed on sorbs.net for no apparent reason so we are unable to email some clients. I can't even get the sorbs.net page to open it keeps timing out! This is completely unacceptable to me!

  From Chris Campbell

• I've litrally just 10 seconds ago came away from there wondering how to delist myself. I have 2 IP's both "listed", one of which isnt even a mail server, delisting seemed overly complicated and required jumping through hoops, so i came to the conclusion they were a bunch of inept scammers, and gave up.

  edit: Im going to put my neck on the block and put this how it needs to be said: SORBS is a scam outfit.

  From some quick research there's tons of complaints about them, it appears theyve been taken to court several times, and the only way to get delisted is to pay either a charity (which people report wont actually get you delisted) or contribute towards some guys legal defence..... who happens to own the site.

  If im wrong, someone please correct me, but this stinks of scam to me.

  Sirex : http://en.wikipedia.org/wiki/Spam_and_Open_Relay_Blocking_System#Spam_database_removal_procedure specifically "In order for IP addresses that have spammed in the past to be removed from the spam database, SORBS requires what it calls a "fine" in the form of a US$50 donation to any registered charity" -- smells fishy to me !
  From Sirex

• It would seem that SORBS is having a database problem right now, and is blocking a lot more than it usually does. This may be a transient issue:

  http://isc.sans.edu/diary.html?storyid=9685

  From sysadmin1138

• Our server is also on the list as of the past day.

  My research also points to sorbs.net being a site run by scammers or idiots. I cannot even register a user account there to research the blacklist. It times out. Maybe their server is being overwhelmed with others who are affected.

  You can tell that sorbs.net is a scam in that they do not use a publicly registered certificate. You have to accept their self-signed certificate to access their HTTPS pages. If a service is truly interested in promoting legitimate mail servers, why isn't it interested in publicly registering their own site certificate?

  From Lil ol' me

• I can't believe why anyone still uses this "blacklist".

  Brett Ryan : We don't use the service however our partners in China do.
  From PHLiGHT