I had two versions of the account information for my main email account in Mail Accounts. The older one was set up for receiving mail, the newer one for sending. Yesterday I deleted the older account and now have set the newer one to check for mail.
Now PowerMail wants to re-download all previously downloaded mail. I keep 2 months of mail on web mail as a backup. I assume that when I deleted the older settings in Mail Accounts PowerMail lost the log of what mail it had already downloaded.Is there any way to keep PowerMail from re-downloading the email it has already downloaded? Thanks for any help. - Winston (This happened because my internet company moved to authenticated SMTP which required different SMTP settings. I discovered that the PM "List- Unsubscribe" button on some emails ignored the setting to use the newer account settings and instead used the older settings, which no longer work for sending mail. So I deleted the older settings, not realizing that this would mess up PowerMail's tracking of what mail it had already downloaded.)

