BCC and CC - Blind carbon copy and Carbon copy
EOD - End of day
EOM - End of message
FYI - For your information
FYR - For your reference
FAO - For the attention of
NYR - Need your response
NYRQ - Need your response quick
NYRT - Need your response today
NWR - Not work-related
NT or N/T - No text
NNTR - No need to respond
PFA - Please find the attachment
RR - Reply requested or Reply required
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