Told vultr.com thier IP is blacklisted. Says my sources are “not reliable”

Today I launched a VPS with vultr.com. Tested the assigned VPS IP in mxtoolbox.com (listed 3 times) and multirbl.valli.org (listed 6 times).

I informed them that the IP history has it blacklisted and their response:

"those are not reliable data sources"

I asked twice for the reliable source and they sent a link to www.senderbase.org/lookup/ (run by Cisco) which checks 4 blacklist databases in which indeed it is NOT listed.

Is it safe to ignore the blacklist reports in mxtoolbox.com and multirbl.valli.org? :)

By practice all my other IPs a clear in mxtoolbox.com, so just want to double check that this is safe to ignore.

Thanks