Postfix local delivery only and save in a MySQL database

In my local network I have 2 PCs:

1. Ubuntu 16.04 with LAMP
2. Windows 7 with an instrument connected to this PC via special software which сontrols the device (instrument)

When the instrument ends its work, this special software can send email.

I need to send emails to Ubuntu PC and save emails in a MySQL database. This is the only functionality that I require.

I tried to use postfix. I installed it sudo apt-get install postfix and select local delivery only configuration.

How can I connect postfix to MySQL? And which email do I need to use on the second PC with Windows to send emails?

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