Email going into Junk Mail folder in Outlook despite turning off Junk Mail

I'm afraid that maybe your company's email server is somehow flagging the email as junk even before it gets to you. If that was the case, your client would have no say in whether it was or wasn't junk. At least it's not getting filtered out altogether.

You may just have to deal with this one or talk to someone who can modify the company email server's policies.

I've got a SOLUTION for Office 365 users.

My situation was as follows:

• web contact form kept being moved to spam
• tried safe sender, no automatic filtering etc - exactly as the OP did
• spent 3 hours doing all sorts of tests eventually thinking I was going mad
• even in the spam filtering area in Office 365 I couldn't find how to disable it for that particular address

Then an epiphany: what if my OWA (outlook web version) was overriding my spam settings? Guess what - it was!

If you're using OWA/Office 365, this is how to solve the issue yourself:

• login into OWA with the relevant email account, as the admin of Office 365 or as someone with permissions to open the relevant mailbox
• to to the settings (gear wheel, top right)
• choose Options
• go to Block or Allow
• Choose "Don't move email to my Junk Email folder"

That will override it entirely. Thought I'd share here!