Exchange 2010 Blocking Twitter

I am responsible for a windows network with an Exchange 2010 server. It appears that we haven’t been receiving twitter emails for quite sometime, maybe even as far back as just before Halloween/November. Does anybody know how one would properly whitelist Twitter or check emails that were bounced directly? Here’s part of a Mark from PowerShell (this doesn’t work):

[PS] C:\Windows\system32>Get-ContentFilterConfig

Name                                  : ContentFilterConfig
RejectionResponse                     : Message rejected as spam by Content Filtering.
OutlookEmailPostmarkValidationEnabled : True
BypassedRecipients                    : {}
QuarantineMailbox                     :
SCLRejectThreshold                    : 7
SCLRejectEnabled                      : False
SCLDeleteThreshold                    : 9
SCLDeleteEnabled                      : False
SCLQuarantineThreshold                : 9
SCLQuarantineEnabled                  : False
BypassedSenders                       : {}
BypassedSenderDomains                 : {twitter.com}
Enabled                               : True
ExternalMailEnabled                   : True
InternalMailEnabled                   : False
ExchangeVersion                       : 0.1 (8.0.535.0)
Identity                              : ContentFilterConfig
ObjectCategory                        : private.local/Configuration/Schema/ms-Exch-Message-Hygiene-Content-Filter-Config
ObjectClass                           : {top, msExchAgent, msExchMessageHygieneContentFilterConfig}
WhenChanged                           : 1/8/2014 8:53:15 AM
WhenCreated                           : 9/27/2011 8:48:45 PM
WhenChangedUTC                        : 1/8/2014 1:53:15 PM
WhenCreatedUTC                        : 9/28/2011 12:48:45 AM
IsValid                               : True

Answer

Attribution
Source : Link , Question Author : TheFrack , Answer Author : Community

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