The Bat, how to get only missing emails?

Question

Email

The situation is as follows: from mailbox "A" to mailbox "B" was configured to send letters, which were then taken from it using The Bat, however, not all messages could be forwarded, and now there is a need to receive from mailbox "A" only those that are not currently available locally.
Any ideas?

Answer 1

Delete existing inboxes in TheBat and get everything again, for example. But you need to make sure that "Delete letters from the server" was not set in the settings and that the server has all the necessary letters.
Or, better, set up IMAP. Then there will always be a server inbox mirror in the inbox.
PS Another option - get what you have, then right-click on the pack and select "Delete duplicate letters".