The best way to transfer Comcast email to Gmail is by using a reliable tool like IMAP Mail Backup Tool, and you can also do it by the manual method. While the process can seem complex, there are simple and effective methods available. This guide, “Easily Transfer Comcast Email to Gmail Without Data Loss”. For speed, accuracy, and minimal risk, the IMAP Backup Tool is highly recommended, though advanced users may opt for the manual process.