Onboard Proofpoint Isolation metadata
```
<EntityDescriptor xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata" entityID="https://api.us.access.proofpoint.com/v1/nebraskalincoln/saml/metadata">
<Extensions>
<mdrpi:RegistrationInfo registrationAuthority="https://nebraska.edu/nefed" />
<mdattr:EntityAttributes>
<saml:Attribute Name="http://macedir.org/entity-category" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri">
<saml:AttributeValue>https://nebraska.edu/category/registered-by-nefed</saml:AttributeValue>
</saml:Attribute>
</mdattr:EntityAttributes>
<mdui:UIInfo>
<mdui:DisplayName xml:lang="en">Proofpoint Isolation</mdui:DisplayName>
<mdui:Description xml:lang="en">Proofpoint Isolation</mdui:Description>
<mdui:InformationURL xml:lang="en">https://www.proofpoint.com/us/company/about</mdui:InformationURL>
<mdui:PrivacyStatementURL xml:lang="en">https://www.proofpoint.com/us/legal/privacy-policy</mdui:PrivacyStatementURL>
</mdui:UIInfo>
</Extensions>
<SPSSODescriptor AuthnRequestsSigned="false" WantAssertionsSigned="false" protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
<NameIDFormat>urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified</NameIDFormat>
<AssertionConsumerService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location=https://api.us.access.proofpoint.com/v1/nebraskalincoln/sso/saml index="1" />
</SPSSODescriptor>
<Organization>
<OrganizationName xml:lang="en">Proofpoint</OrganizationName>
<OrganizationDisplayName xml:lang="en">Proofpoint</OrganizationDisplayName>
<OrganizationURL xml:lang="en">https://www.proofpoint.com/us</OrganizationURL>
</Organization>
<ContactPerson contactType="technical">
<GivenName>Robby Debevoise</GivenName>
<EmailAddress>rdebevoise@nebraska.edu</EmailAddress>
</ContactPerson>
<ContactPerson contactType="support">
<GivenName>ITS Security Operations</GivenName>
<EmailAddress>its-sec-ops@nebraska.edu</EmailAddress>
</ContactPerson>
<ContactPerson contactType="administrative">
<GivenName>Greg Veys</GivenName>
<EmailAddress>gpveys@nebraska.edu</EmailAddress>
</ContactPerson>
<ContactPerson contactType="other" remd:contactType="http://refeds.org/metadata/contactType/security">
<GivenName>ITS Security</GivenName>
<EmailAddress>security@nebraska.edu</EmailAddress>
</ContactPerson>
</EntityDescriptor>
```
issue