[TYPO3-core] RFC: #13698: Add proxy for the mail() function

[Benjamin Mack]

Hey Tolleiv,

I'd love to finally see the $headers as an associative array for this 
generic function, then the function takes over the concatenation with 
chr(10). What do you think?

Also, should we move this to t3lib_Utility_Mail and call it "sendPlain" 
or "sendSimple" or "send"?

All the best,
Benni.