Why can connection to the SSL/TLS (HTTPS, FTPS, SMTP/S, POP3/S) server be closed without any error indication right after connecting?

The data is sent to the socket in large chunks (1Mb by default) and the progress is reported once for each chunk. Decreasing the chunk size would reduce the speed of transfer.

Receiving happens in a similar manner, but in most cases the chunks that are read from the socket are much smaller, so they don't affect OnProgress a lot.

Ready to get started?

Learn more about SecureBlackbox or download a free trial.

Download Now