I have just set up Thunderbird as an email client. Set up is IMAP and I am saving copies of emails locally on my PC (running Windows 10). I am using Thunderbird to monitor 3 accounts, all ntlworld.com. In one of the accounts spam emails are appearing in my local Sent folder but they are not appearing in the Inbox, nor are they in the VirginMedia Sent folder when I log on directly to look at my emails. Can anyone explain? Thanks.
Thanks Graham. I have 3 accounts and they all have the same settings but this issue is only affecting the account I added first. Also I thought IMAP only affected the incoming emails and this issue is with the SENT folder? (I admit my knowledge in this area is not great!)