pop 3 settings

i have a pda 6800 mogul by sprint. whe i first got the the phone i was able
to snych it to my hotmail acct and it automactically pulled emails and told
me when they were there. as of recently it no longer does that. i call sprint
tech support and they said something about pop 3 settings. can you restore
them to my phone? i have a free act.