Robert,
How do we get the raw EML content of the email from web mail?
Also, it looks like only messages from MacOutlook aren't showing inline images (only in the web interface). The following are taken from the message header of an email not showing the inline images:
User-Agent: Microsoft-MacOutlook/10.11.0.180909
X-Priority: 2
Mime-version: 1.0
Content-type: multipart/mixed;
boundary="B_3624557247_1316855529"
X-Exim-Id: BC03C6F3-F63B-4D10-A38D-59033B9C95D4
X-SmarterMail-Spam: Reverse DNS Lookup [Passed], Commtouch 0 [value: Unknown], SPF_Pass
X-CTCH-RefId: str=0001.0A090202.5BE4F0A4.0034:SCFSTAT48026596,ss=1,re=-4.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0
X-SmarterMail-TotalSpamWeight: 0 (Trusted Sender - User)