email from a certain user keeps going to junk folder (outlook 2013)

Ok, so this one is puzzling me, should be very easy to resolve, but it's not.
A user is running outlook 2013.  There's an email from a user from sbcglobal.net that everytime he sends an email
to this user in my organization, it goes into her junk folder.

Here's what I've done so far, with no success.
1. clicked on user, and set "never block sender"
2. clicked on user, "never block senders domain"
3. added the email address to "safe senders and safe recipients" sections
4. I have checked "automatically add people I e-email to the safe senders list", but still didn't help
5. I tried both the "no automatic filtering" and "low" options, when used low, the following check boxes were checked: "disable links ..." and "warn me about suspicious..."
6. I closed and opened up outlook numerous times
7. I checked to make sure there are no rules that automatically moves the sender email to junk
8. I sent an email from the user's email, and had the sender reply, but still goes to junk

I'm out of options, does anyone else have any suggestions?

All emails from this one individual still goes to the user's junk folder.
DanNetwork EngineerAsked:
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AmitIT ArchitectCommented:
One last option is to change the SCL value. Read this
https://technet.microsoft.com/en-us/library/bb123559(v=exchg.150).aspx

You can set this at user level or org level also.

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Muhammad BurhanManager I.T.Commented:
Give a try with exchange powershell
Set-ContentFilterConfig -BypassedSenderDomains sbcglobal.net

This will add sbcglobal.net in whitelist
DanNetwork EngineerAuthor Commented:
I don't think it's exchange blocking it, because I'm receiving his emails just fine
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DanNetwork EngineerAuthor Commented:
so I'm not sure what threshold I want to make the rule, plus, since the email is arriving in her outlook, isn't it outlook that is causing it to go to her junk folder?

I had the user send me an email, and it got delivered just fine for me.

I just processed the command:Set-ContentFilterConfig -BypassedSenderDomains sbcglobal.net
But how do I reverse this if I need to remove it from the whitelist?

I just don't understand why the GUI can't do everything that the command line can do, that's just frustrating.
DanNetwork EngineerAuthor Commented:
Amit: so I'm looking at the command, but since I don't use powershell, I'm not sure what parameters I need to configure.

Set-Mailbox <MailboxIdentity> -AntispamBypassEnabled <$true | $false> -RequireSenderAuthenticationEnabled <$true | $false> -SCLDeleteEnabled <$true | $false | $null> -SCLDeleteThreshold <0-9 | $null> -SCLJunkEnabled <$true | $false | $null > -SCLJunkThreshold <0-9 | $null> -SCLQuarantineEnabled <$true | $false | $null > -SCLQuarantineThreshold <0-9 | $null> -SCLRejectEnabled <$true | $false | $null > -SCLRejectThreshold <0-9 | $null
DanNetwork EngineerAuthor Commented:
I think I solved the problem, when I logged into the user's OWA, I noticed that the email going to junk is listed in the blocked senders list, which was not listed in outlook. So I removed it, and am waiting for the person to send another email as a test, but most likely, that was the problem.

So how do I reverse now the command I just did:
Set-ContentFilterConfig -BypassedSenderDomains sbcglobal.net

Thanks.
DanNetwork EngineerAuthor Commented:
I'm still not sure yet, as I couldn't get the sending person to send the email yet.

But either way, how do I reverse the following command:
Set-ContentFilterConfig -BypassedSenderDomains sbcglobal.net
Muhammad BurhanManager I.T.Commented:
Set-ContentFilterConfig -BypassedSenderDomains @{Remove=”sbcglobal.net”}
DanNetwork EngineerAuthor Commented:
Does anyone else have any suggestions as why email from one person keeps on going to junk, and how to stop doing that?
DanNetwork EngineerAuthor Commented:
The problem is not fixed, emails still keep going to the users junk folder.
DanNetwork EngineerAuthor Commented:
Thanks guys, I solved the issue, somehow, she had the user listed in OWA as blocked sender.  Even though I had removed it from there a few days go, it was still there, so I removed it again, and it took, so my test was successful.
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