Double entry ?

All of my messages are coming in twice. Is there an option to delete messages from the server when they are downloaded? I am new to eM Client but so far (apart from the abovementioned problem) I am loving it.

Sorry! I think this was a dumb question. My two email accounts were linked and I think eM client was picking up the combined account and the linked account. I have now removed the link and expect that will solve the problem.