Can GMail Be Used as a Spam Filter? – Email Spam Prevention

Go to "Extra->Account Settings". Click the "Manage Identities" button and add an identity (using your alternate email address).

Close the settings dialog and compose a new email. You can select an email address from the "From" dropdown in the top of the window:

Outlook likely knows the domain name and has blocked that

1. First check Blocked Senders.

2. Then add the domain from where the email is forwarded from in the Safe Senders.

   • This will prevent the email being blocked in future.

   • You may need to add her "normal email address" here as well as kansaspublicradio.org

Instructions below.

How to configure junk e-mail filter settings in Outlook?

There are five different junk e-mail filter lists in the Junk E-mail Options that can determine whether the emails will be moved to the junk folder or not.

• Safe Senders List: Email addresses and domain names of the senders in this list are never treated as junk.

• Safe Recipients List: You can add addresses and domain names from the mailing lists and distribution lists to this list so that they will never be marked as spam.

• Blocked Senders List: If you add an email address or domain to this list, messages will automatically sent to the Junk Email folder.

• Blocked Top-Level Domains List: You can add country/region codes to this list to block messages from another country or region.

• Blocked Encodings List: To block messages that contain special encoding or character set, you can add encodings to this list.

To set these junk e-mail filter lists, you can do as follows:

1. Click Home > Junk > Junk E-mail Options in Outlook 2010/2013, and click Actions > Junk E-mail > Junk E-mail Options in Outlook 2007.

2. In the pop up Junk E-mail Options dialog box, click Safe Senders tab, and click Add button to add the address or domain that you don’t want to treat as spams.

   

Source How to configure junk e-mail filter settings in Outlook?