IMAP Upload is a tool for uploading a local mbox file to IMAP4 server. The most stable way to migrate to Gmail. Read messages stored in mbox format which is used by many mail clients such as Thunderbird. Upload messages to IMAP4 server. Preserve the delivery time of the message. (support date time in From_ line / “Received:” field / “Date:” field) Automatic retry when the connection was aborted wh