My website email services are blocked by major providers since past few days now. The issue (possibly) is that some other website hosted on the same net range as mine has been spamming, and despite multiple abuse reports no action was taken. Finally the net range was blacklisted. The support is just waiting to resolve it, as staff shifts happen, putting all responsibility to resolve on spamhaus, knowing that such requests are a hit and miss more often. KH CTO - Paul, It is unacceptable to be so slow in responding to such issues that your clients are facing due to others faults. This is what spamhaus states about this blacklisting: =================== Spammer & cybercriminal hosting (escalation) Reports of abuse ignored. Abusers allowed to stay hosted. Not a network IP range we can advise our users to trust. =================== Apparently some other site on your network was involved in spamming and your checks failed to control it, despite reports of abuse. There is no explanation on why business of trusting customers paying for your services will be impacted for so many hours and days, this is equivalent to significant downtime for our critical mail services. If there is a need to change IP Addresses, it needs to done immediately without impacting our business. =================== Let me know who I need to escalate this incident to get an immediate fix in place. I won't accept any further delays.