I followed Verizon's instructions and set up a new account in Mail but kept the old account until I have confidence that the changes work.
When I click on Get New Messages in All Accounts, I get duplicates of each new mesage, one in each account. But sometimes it doesn't do that. For instance, just now a new message went into the old account but not the new one.
Can someone explain why that happens? The preferences are identical in the two accounts except for the required changes. I am concerned that once I delete the old account, I may miss out on receiving some messages.
Thank you.