Managing Safe Senders List

We use Exchange 2011 with Outlook 2010.  We use FuseMail as a spam filter.  One of our users has reached the size limit on her safe senders list and receives the following error when adding a contact:

"Cannot add to the server Junk E-mail Lists, you are over the size allowed on the server. The Junk E-mail Filter on the server will be disabled until your Junk E-mail Lists have been reduced to the size allowed by the server. "

I know I can increase the limit in Exchange with a registry change, but would prefer to keep the size down.  This user has the "Also trust email from my contacts checked off and has over 5000 contacts.  In addition, she has "Automatically add people I email to safe senders list" checked off.

If I uncheck these items, will it automatically remove the entries?  More importantly, If I remove entries to reduce the size of the list, will this have a negative impact on the ability to receive email from the contacts and users she has emailed?
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jspazianoctoAsked:
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Clark KentSoftware Engineer cum BloggerCommented:
Hello,
You can disable the option to add contacts to the safe senders list. On the Safe Senders tab, clear the Also trust e-mail from my Contacts check box.

If the problem persists, you may need to clear the Junk Email folder’s offline items by right clicking on the Junk Email folder, selecting Properties and clicking Clear Offline Items on the General tab.
For more info please refer the following link:
https://support.microsoft.com/en-in/kb/2669081
Thanks & Regards,
Clark Kent

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jspazianoctoAuthor Commented:
Thanks for the response.  I was wondering if deleting items from the safe senders list would affect our ability to receive emails from these senders.  I would basically like to work from a clean slate of safe senders, if possible, but don't want to jeopardize mail flow.

Hope I have described the issue properly.
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