I have a problem with receiving POP3 and sending SMTP emails, but it only concerns the Onet (onet.pl and onet.eu) server. All POP3 and SMTP settings are correct, verified. The problem appeared a few days ago, probably after an update. The problem with receiving is when I receive emails in bulk from all accounts by clicking the Download button (Download new messages for all accounts). They are downloaded from all servers, except Onet. This problem does not occur if I download messages from Onet by clicking in the menu File/Download messages from/account name. The problem with sending messages appears when after writing an email I click the Send button (Send this message). There is no problem if I click the File menu/Send later, and then in the Outgoing folder I click Send pending messages. Can anyone help me to solve this problem?