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IP on DNS blacklist (IP on DNS Blacklist) Down (Error checking bl.spamcop.net, it contains an entry for 127.0.0.1 )

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  Our PRTG server started alerting us to the following. IP on DNS blacklist (IP on DNS Blacklist) Down (Error checking bl.spamcop.net, it contains an entry for 127.0.0.1) Also, emails sent from Office 365, some at not getting through. watchdog.wmf.de gave this error: Decision Engine classified the mail item was rejected because of IP Block (from outbound normal IP pools) -> 550 40.107.14.123 blacklisted at bl.spamcop.net Appears   bl.spamcop.net   have not renewed their domain? https://forum.kpn.com/e-mail-10/spamcop-net-opgeheven-levert-problemen-op-530208?postid=1229636#post1229636 This appears to be causing miss classifications of IP’s that are being blacklisted. The server used at this time for Office 365 appears to on this backlist. Name:    mail-eopbgr140123.outbound.protection.outlook.com Address:  40.107.14.123       Tracking ID: 1ca78e52-284c-4af5-b352-1053cc27860f