Exchange 2010 Message Delayed 400 4.4.7

We have 2 messages in our queue that are being delayed. Both from the same user and to the same user. I can send an email to the recipient with no problem. I can't figure out what is keeping these messages from being delivered. Here is a copy of the message info. The sender and recipient info has been changed for privacy reasons. How do i figure out why these 2 emails from this sender to the same recipient have been delayed when others here can send to the recipient with no problems?

Identity: OD-AF-W-EM-11\389700\2295173
Subject: FW: US Agencies # 225 928-9000
Internet Message ID: <8413EC9AB241E24CAFA079C549E33A9A15487C8C@AFFM-EXCH-MB-2.AFFM.Local>
From Address: sender@domain.com
Status: Ready
Size (KB): 15330
Message Source Name: SMTP:Receive_Internal
Source IP: 10.25.16.117
SCL: -1
Date Received: 4/30/2015 3:37:17 PM
Expiration Time: 5/2/2015 3:37:17 PM
Last Error: 400 4.4.7 Message delayed
Queue ID: OD-AF-W-EM-11\389700
Recipients:  recipient@domain.com;2;2;400 4.4.7 Message delayed;0;CN=EdgeSync - AFFM to Internet,CN=Connections,CN=Exchange Routing Group (DWBGZMFD01QNBJR),CN=Routing Groups,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=First Organization,CN=Microsoft Exchange,CN=Services,CN=Configuration,CN={4B4C6B1C-187A-44F3-A19F-2201BCC0E44F}
Eddie CrosbyAsked:
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Will SzymkowskiSenior Solution ArchitectCommented:
The Microsoft KB below shows that this error 4.4.7 is related to either maximum hops or possible loops detected between the Sender and Recipient.

https://support.microsoft.com/en-us/kb/284204

Will.
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