Lashback is blacklisting Zoho again

Lashback is blacklisting Zoho again

Outgoing IP address 74.201.84.153 is being blacklisted again. This means that I cannot send messages to Hotmail addresses, and possibly other email addresses.  This has happened just over a week since the DDoS attack and the previous blacklisting episode.  This is unacceptable.  Some of us are running businesses using Zoho email and are losing business.  I lost out on a contract during the last blacklisting episode, as my email did not get through to the potential customer.

What is going on with Zoho?  Shouldn't you have put measures in place to prevent further spamming using Zoho servers to prevent blacklisting?

Please sort this out urgently!