(FAQ) What does Winsock Error 10061 mean?
What does Winsock Error 10061 mean?
Winsock error 10061 means that the server you are attempting to connect to is actively refusing the connection. This usually results from trying to connect to a service that is inactive on the foreign host.
If you are receiving this error on all outbound mail, it may indicate that your ISP is blocking outbound traffic on port 25. Please check with them to confirm.