01-29-2018 07:07 AM
01-29-2018 07:07 AM
Emails sent from on-premises Exchange 2007 to any Microsoft related email address (outlook.com for example) is being delivered to the users Junk Email folder despite the header information showing SCL value of 1 which is suppose to deliver the email to the Inbox folder.
I've included some header values below if that helps.
I can see from the above value that it is directed to the junk Email folder.
Interestingly, the X-Forefront-Antispam-Report shows SPF:None but the Received-SPF value shows Pass which doesn't seem to match up. That said, I've seen other emails with the same pattern that are delivered to the Inbox so I doubt this is the cause.
We have a SPF record that is correct, and if we email Office 365 customers the same email is delivered to the Inbox. This issue only affects Outlook.com customers. If there is a better community/category for this thread, then I can move/re-post if needed.
Any help much appreciated.
01-29-2018 11:04 AM
The move to Junk folder might be performed by Outlook's antispam engine, not EOP. A quick way to verify this is to check the "info bar" - it will tell you who marked the message as Junk. Or run a message trace - if It was marked by EOP, it will be reflected there.
Here's an easy to follow article on that: https://www.slipstick.com/outlook/rules/moved-message-junk-email-folder/
It can also be due to custom Junk threshold, as detailed for example here: https://support.microsoft.com/en-za/help/3019725/how-to-troubleshoot-unexpected-junk-email-behavior-...
01-30-2018 01:17 AM
The "info bar" shows 'This message was identified as spam. We'll delete it after 10 days'
Would this suggest that it was EOP? I didn't think that Outlook.com had it's own Anti-Spam engine - I thought that EOP served that purpose.
Your second link refers to Office 365 which is a slightly different platform that Outlook.com so am I to assume the content of that KB doesn't apply?
01-30-2018 07:58 AM
I've seen your situation mentioned in the Answers forums and see that some recommend filling out this form: https://support.microsoft.com/en-us/getsupport?oaspworkflow=start_22.214.171.124&wfname=capsub&productkey=e...
01-31-2018 12:03 AM
I found that too but I'm afraid to say, I have completed that form on two occasions and they have checked the reputation of our external IP address and not found any issues.
When I replied and asked them about why emails with an SCL of 1 are being delivered to the Junk Email folders for recipients, they ignored my questions and repeated their previously response.
01-31-2018 12:31 AM
I have submitted that again and they have now come back and said that our external IP address was listed on the Spamhaus PBL list - this wasn't the case last week when I first submitted the Outlook Deliverability Report however so I am waiting for that to propagate before I test sending to Microsoft's free email platform again to confirm the issue is resolved.
01-31-2018 05:58 AM
We are no longer listed on the PBL, but the issue remains - as I suspected.
I can't be the only one seeing this issue?
11-06-2018 05:32 AM
I am investigating the same problem.
In my mail the following issue existed which probably caused the mail to be placed in JunkMail: