>We use Lotus Notes mail. I'd like to create feature to application
>which will able to send messages to defined mail adress.
>Could somebody help me how to use MAPIMessages and MAPISession Control ?

Jozef,

See Nigel Coates class here in Files Section.
His class uses MSMAPI to send mail and works very fine.
If you use send(1) the message is sent with user interaction.
If you use Send(0) the message is sent without user interaction.