E-Mail StandardHeader Standard Header Y MsgType = C 164 EmailThreadID EmailThreadID Y Unique identifier for the email message thread 94 EmailType EmailType Y 42 OrigTime OrigTime N 147 Subject Subject Y Specifies the Subject text 146 NoRelatedSym NoRelatedSym N Specifies the number of repeating symbols specified 46 RelatdSym RelatdSym N Can be repeated multiple times if message is related to multiple symbols. 65 SymbolSfx SymbolSfx N Can be repeated multiple times if message is related to multiple symbols. 48 SecurityID SecurityID N Can be repeated multiple times if message is related to multiple symbols. 22 IDSource IDSource N Can be repeated multiple times if message is related to multiple symbols. 167 SecurityType SecurityType N Must be specified if a Future or Option. If a Future: RelatedSym, SecurityType, and MaturityMonthYear are required. If an Option: RelatedSym, SecurityType, MaturityMonthYear, PutOrCall, and StrikePrice are required. 200 MaturityMonth Year MaturityMonth Year N For Options or Futures to specify the month and year of maturity. 205 MaturityDay MaturityDay N For Options or Futures and can be used in conjunction with MaturityMonthYear to specify a particular maturity date. 201 PutOrCall PutOrCall N For Options. 202 StrikePrice StrikePrice N For Options. 206 OptAttribute OptAttribute N For Options. 207 Security Exchange Security Exchange N Can be used to identify the security. 106 Issuer Issuer N Can be repeated multiple times if message is related to multiple symbols. 107 SecurityDesc SecurityDesc N Can be repeated multiple times if message is related to multiple symbols. 37 OrderID OrderID N 11 ClOrdID ClOrdID N 33 LinesOfText LinesOfText Y Specifies the number of repeating lines of text specified 58 Text Text Y Repeating field, number of instances defined in LinesOfText 95 RawDataLength RawDataLength N 96 RawData RawData N StandardTrailer Standard Trailer Y