Send email with objects file from LM

[JoseJimenez94]

Log what mail function returns. Also, you should not use mail function from that example, it's outdated.

Code:

res, err = mail('test@test.com', 'Alert', 'KNX object 1/2/2 value is: ' .. tostring(value))
log(res, err)

Mail function returns this:
* arg: 1
 * nil
* arg: 2
 * string: Try again