Re: [mailop] Office 365 - Emails marked as not passing fraud detection

On 23 Nov 2017, at 23:50 (-0500), Shane Clay via mailop wrote: Bill - the email wasn't aimed at asking Microsoft for support on a public mailing list. It wasn't a technical support request at all. It was from a network person, separate the end user, looking into an issue which he is

Re: [mailop] Office 365 - Emails marked as not passing fraud detection

Thought I would point out as well.. This message was sent via Outlook to the list, and Outlook already marked your message as spam, which many other filtering systems will honour. That header remained intact while being processed by the mailing list software at mailop.org.

Re: [mailop] Office 365 - Emails marked as not passing fraud detection

Maybe this... https://twitter.com/certbund/status/933674851092566017 David On 24 November 2017 at 04:31, Shane Clay via mailop wrote: > Hi All > > > > I can’t figure this one out so looking for some help from people in the > know. One of our clients has a postfix mail relay

Re: [mailop] Office 365 - Emails marked as not passing fraud detection

I would also suspect RDNS. The problem here is ip-103-219-120-34.stcolumba.customer-wan.caznet.com.au looks like dynamic address and does not resolve back to IP: $ host 103.219.120.34 34.120.219.103.in-addr.arpa domain name pointer ip-103-219-120-34.stcolumba.customer-wan.caznet.com.au. $ host