justspam.orgは安全ですか？

Out of date information, Not trustable. I rented a new machine from my ISP that used to be used as a spamming machine couple years ago. It took me several weeks to delist it and prove that the business that ip is doing now is legit. Everything is fine, i am receiving a report from MxToolboox every week for months just for me to verify that i am good. Then all of a sudden, i received a message from MxToolbox telling me that ***** listed me as a spammer... Wow... The website is registered under shinilkumark@yahoo.com, with a PO box in Dubai... well nothing to inspire trust...

IP blocklist. Unfortunately their method of removal is reliant on other blocklists, which makes their information inaccurate and out of date. This is exaggerated by the fact that they are not well known. Also, no method of removing an IP from their blocklist simultaneously with other blocklists that they check against currently exists. You must remove FIRST from others PRIOR to being able to remove from their list.