thurnderbird on multiple computers - e-mails not appearing on all computers
We have Thunderbird on 4 computers. We all have our own personal account and then we share one account. Emails for the shared account do not appear on all the computers consistently. It varies by the day. The account is an IMAP account. On both the shared account and the personal account e-mails randomly disappear. This all started within the last few months. All was well until then. NO changes to the computers. HELP!