Our email host only allows a small number of connections per IMAP mailbox, however we need 2x the limit number of users to be able to access the account to retrieve mails. Sending isn't required, it's simply reviewing the received mail and deleting/moving to a sub-folder.
Are there any tools available which can sit on a linux server or a Mac desktop and act as a gateway/proxy, so that our host only sees a single connection?