DriveHQ's main service is Online Storage (remote file server), Online Backup and FTP server hosting services. DriveHQ Online Storage has a lot of high-end features such as automatic folder synchronization among multiple PCs and users; sharing different folders to different users and set different levels of access rights.
DriveHQ also offers web / email hosting services for no additional charge. DriveHQ web hosting service is limited to static web pages and files. It is very easy to use, but we don't support server-side scripting, and we also don't support database.
DriveHQ Email Server hosting service is designed for regular business customers. While the service also works for free service customers, in the past years, we have had too many service abuses from too many spammers and scammers. Free service users are recommended to use other free email services. On DriveHQ, free service users can only send a few emails per day.
DriveHQ email service also cannot be used for sending bulk emails to a large mailing list, regardless of paying for the service or not. Sending too many emails/day will automatically block your account.
These being said, DriveHQ email service has a lot of great features that are designed for small and medium-sized businesses. DriveHQ customer support is using the same email system as well as a lot of other SMBs. Custom domain email is also supported.
DriveHQ has another great product (service): DriveHQ EmailManager, which is designed for drag-&-drop email / address book backup. EmailManager supports automatic backup of Outlook / Outlook Express / Windows Mail emails and contacts. EmailManager can also be used to transfer emails / contacts from one PC to another PC, or make your emails / contacts available online using DriveHQ webmail. DriveHQ EmailManager (email backup) service is a separate service and is priced separately.