I had my server IP blacklisted by Hotmail/Outlook, and while the people at Dedicatedhosting4u attempted to assist in de-listing the IP, I ultimately decided to convert to a dedicated IP. This was suggested by a member of the Dedicatedhosting4u team as a way to get around the Hotmail barrier. His assistance was prompt and efficient.
Services Period: Active customer at the time of review. Customer since October, 2020