Very recently (last 10 days or so), when downloading e-mails, Thunderbird is downloading the SAME e-mails to TWO different accounts! (This is new and somewhat concerning behaviour - I don't want one account receiving another accounts e-mails, for obvious reasons!) The accounts are "astratford@rogers.com" and "ajstratford@rogers.com". I get DUPLICATED e-mails in EACH of these two accounts; I then go to the 2nd account, select ALL, then DELETE. Not disastrous, but time-consuming, annoying and a confidentiality issue - and a potential security issue. Versions: MacOS Ventura 13.6.4, Thunderbird 140.1.0esr (aarch64) I would like to know what might have changed to cause this behaviour. As always, any suggestions or reply much appreciated.