1C 8.2 and stunnel leads to a periodic freeze once every 1-2 days. What is the reason to look for?

Question

1C

Using 1C 8.2 and stunnel leads to a periodic freeze about 1 time in 1-2 days.
Computer with i5-3340 and 4 GB RAM with Windows 10 in a domain.
The paging file was increased to 32 GB for the test, but this did not help.
It works, but 1C hangs periodically when sending mail at the most inconvenient working moment. In the middle of the work day, for example.
In what direction to look for the cause?

Answer 1

1C has been able to use SSL for many years. What for you stunnel?