accounts: [email protected] and [email protected] can not receive mails, can send mails those accounts are working good on another computer I already set up the security.tls.version min to 1 (this was needed after updating the Thunderbird - two accounts on 4 are working good again: [email protected] and [email protected]) I also set up the server setting to IMAP.prince-edouard.com (instead of pop3.prince-edouard.com). Still can not receive mails on those two accounts. The server is on our website www.prince-edouard.com, where we have different mail addresses I can see the mails on the server. There is, for those two accounts, a padlock on the icon which is left of the account name under Folders on the main window of Thunderbird. see screen shot attached. Thanks for your help. John