Postiling or Postilling: How To spell?

The word Postiling is misspelled against Postilling, which is present continuous of "Postil"

Postilling has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings posti & ing which should not be misspelled with single 'L'
Wrong Spelling:  posti-l-ing 
Correct Spelling:  posti-ll-ing 
Find more incorrect spellings of Postilling to spell right way.