QUESTION: Fix punctuation: It scans the whole data and compares both the Exchange Server mailbox and OST file and while this comparison if there is any mismatch then it will be fixed
ANS: It scans the whole data and compares both the Exchange Server mailbox and OST file, and while this comparison if there is any mismatch then it will be fixed.

QUESTION: Fix punctuation: The dam will create a reservoir that stretches 385 miles up the river and contains 39 billion cubic meters of water about ten times the amount contained behind the dams that failed in August 1975 The filling of this reservoir will require the relocation of 19 million people
ANS: The dam will create a reservoir that stretches 385 miles up the river and contains 39 billion cubic meters of water, about ten times the amount contained behind the dams that failed in August 1975. The filling of this reservoir will require the relocation of 1.9 million people.

QUESTION: Fix punctuation: DMOZ Regional Europe Jersey Business and Economy Restaurants and Bars
ANS: DMOZ - Regional: Europe: Jersey: Business and Economy: Restaurants and Bars

QUESTION: Fix punctuation: Do not let them burn They may smoke and pop like popcorn this is OK Remove the pan from the heat set aside to cool slightly
ANS:
Do not let them burn. They may smoke and pop like popcorn; this is OK. Remove the pan from the heat; set aside to cool slightly.