ShuttleCloud Blog Comment on How long does an email migration take? by Manuel Robles

How do I stop a migration? My Comcast account is gathering my google account and sending everyone in my address book an email regarding "My New Email Account". How can I stop this? It's sent duplicates to everyone in my address book, from incoming and sent email address. It says I have over 6,000 addresses. I don't there are several duplicates in each account. Please help. Comcast doesn't know how to stop it, google says they don't support shuttercloud. Manuel