Expected response code 250 but got code "530", with message "530 5.7.1 Authentication required". Port, permissions have all been changed, the same local configuration can be sent, online error is reported.
Expected response code 250 but got code "530", with message "530 5.7.1 Authentication required". Port, permissions have all been changed, the same local configuration can be sent, online error is reported.
if your local configuration can be sent, see if the offline linux port is open. After careful inspection, I guess it is still the port, the problem of authority.
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