Internet Message Headers Missing – All Mail Share on Facebook Post on reddit Tweet on Twitter Share on LinkedIn Home › Forums › Messaging Software › Outlook › Internet Message Headers Missing – All Mail This topic has 1 reply, 2 voices, and was last updated 8 years, 2 months ago by jroch. Viewing 1 post (of 1 total) Author Posts ninjamanMember May 24, 2012 at 11:15 am #158827 Interesting scenario developed. Incoming outside emails in Outlook 2007 are not displaying headers. However, in OWA it is viewable. There are no Transport rules in place and nothing has changed as far as we know. Yes, internet headers were previously vieawable. We have Exchange 2007. Given OWA, is this a Outlook issue, Exchange or a third party issue. We have Symantec Endpoint installed but there is no mail capabilities installed w/ it. Ideas? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.