To migrate Spectrum emails to Gmail, you may use the 4n6 Email Backup App. The application will help you backup your Spectrum emails and then move them to Gmail. You just need to set up your Spectrum email account in the app, backup your emails, and then migrate them using the app to your Gmail account.

Key Features of Tool:

1. Backup Spectrum Emails: Safely backup your Spectrum emails, contacts, and calendar events.
2. Migrate to Gmail: Transfer your backed-up emails to your Gmail account with ease.
3. Selective Migration: Select particular emails, folders, or labels to migrate.
4. Retains Email Metadata: Keeps original email formatting, headers, and attachments.