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Thunderbird suddenly stopped downloading IMAP emails, and won't send emails
I have used thunderbird for many years, and all without problems. But two days ago the IMAP emails waiting in my inbox (which I can see if I log on via the web) stopped downloading to thunderbird. It also stopped sending my emails. I have two separate addresses on two separate domains (although they are both on the same hosting service). the bottom line information says "connected to imap.one.com" - which is the host imap server. I have two different emails using the two domains on another computer, and thunderbird is working fine on that one. I have no idea where to begin - the hosting support desk at one.com have not been particularly helpful - and given that the other computer connecting OK and receiving and sending emails, it's probably not their end that is the problem. Has anyone any ideas?
Wšykne wótegrona (1)
Antivirus springs to mind.