10/23/2017 09:02:13 AM TNEFConvert (DEBUG): TNEFProcessNote called for handle 000000B6
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Found file attachment winmail.dat...
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Has a tnef file attachment named winmail.dat.
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Target file name: c:\savtemp\notesEC4863\wm735164.dat
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Skipping Message Attribute: attTnefVersion [00089006]
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Attribute attTnefVersion [00089006] successfully added to attributes.
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Processing Message Attribute: attOemCodepage [00069007]
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Attribute attOemCodepage [00069007] successfully added to attributes.
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Skipping Message Attribute: attMessageID [00018009]
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Attribute attMessageID [00018009] successfully added to attributes.
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Skipping Message Attribute: attPriority [0004800D]
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Attribute attPriority [0004800D] successfully added to attributes.
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Skipping Message Attribute: attDateSent [00038005]
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Attribute attDateSent [00038005] successfully added to attributes.
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Skipping Message Attribute: attDateModified [00038020]
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Attribute attDateModified [00038020] successfully added to attributes.
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Skipping Message Attribute: attRecipTable [00069004]
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Attribute attRecipTable [00069004] successfully added to attributes.
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Processing Message Attribute: attMAPIProps [00069003]
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): Attribute attMAPIProps [00069003] successfully added to attributes.
10/23/2017 09:02:13 AM TNEFConvert (DEBUG): PT_INVALID_TNEF_FORMAT
10/23/2017 09:02:13 AM TNEFConvert: ParseFile failed.
10/23/2017 09:02:13 AM TNEFConvert: Encountered errors process message for xxx@acme.com
when googling the text 'PT_INVALID_TNEF_FORMAT', I find one person that says setting TNEFBreakSMIME=1 will help. does that make sense?