Hello,
Please be advised that few of our IP addresses on the Linux Architecture has been blacklisted at Spamhaus SBL.
Our Abuse Team is currently working with the blacklisting database provider to get the IPs delisted.
We will keep this thread updated with the latest developments. Please feel free to contact our Support Team in case you have any queries.
We sincerely apologize for the inconvenience caused to the clients due to this.