"Self Service Console URL" is an invalid URL - using a valid URL

What is the last part of the DNS name, is it a non-standard domain like .sms, or unusual, or custom, or internal only ?

because.... if you use email addresses with custom or non-standard domains (name@company.sss is one example) you would need to edit a configuration file and add the non-standard domain to a list, so you can then save pages with the custom email addresses....otherwise any page with a non-standard domain will throw an error simply by saving the page without changes, until the ims.properties file is modified.

I only know this affects email address...

so I am wondering if this issue is because the system name itself has a non-standard domain,

and if adding it to the ims.properties file config file would have any effect ?

About this: (fyi this is all from Security Console help menu)

Apache components included in the Authentication Manager appliance prevent the use of nonstandard email domains, such as .bank, .law, and .sms. Authentication Manager allows the nonstandard .local domain.

To use other nonstandard domains, you must edit the Authentication Manager ims.properties file on each primary and replica instance.

Before you begin 

The rsaadmin operating system password for the primary instance is required.

Procedure 

1. Log on to the primary instance appliance with the User ID rsaadmin and the current operating system password:
   • On a hardware appliance, an Amazon Web Services appliance, or an Azure appliance, log on to the appliance using the SSH client.
   • On a VMware virtual appliance, log on to the appliance using an SSH client or the VMware vSphere client.
   • On a Hyper-V virtual appliance, log on to the appliance using an SSH client, the Hyper-V System Center Virtual Machine Manager Console, or the Hyper-V Manager.
2. Change directories:

   cd /opt/rsa/am/utils/resources

3. In a text editor, such as the vi editor, open the ims.properties file.
4. If the validDomainList line does not exist, only the .local nonstandard domain is supported, and you must add validDomainList to support additional nonstandard domains:

   validDomainList=.nonstandard;.local;

   Where nonstandard is the name of the nonstandard domain. For example, to support a .sms and a .local email domain, you would enter validDomainList=.sms;.local;

   You can add more than one nonstandard domain. Separate each name with a semicolon.

5. Save your changes. For example, in the vi editor, type :wq!.
6. Change directories:

   cd /opt/rsa/am/server

7. Restart Authentication Manager services:

   ./rsaserv restart all

   The nonstandard domains are listed in /opt/rsa/am/utils/resources/ims.properties.

8. The ims.properties file is not replicated. If you promote a replica instance, you must repeat this procedure, unless you prepare for promotion by repeating these steps on each Authentication Manager instance in your deployment.