How can I re-verify my email authentication settings?

How can I re-verify my email authentication settings?

My hosting provider recently upgraded and changed my web server, giving me cause to make changes to my somewhat convoluted setup due to separate domain, email and hosting providers...!

I notice that the Email Authentication (SPF/DKIM) cannot be re-verified. That is, once verification is done, you cannot test again to make sure the settings are still good.

Sure, I can delete them and start again, but then I get a new DKIM key I must set in my DNS settings.

When setting up SPF/DKIM, there is a Verify link, but it disappears when both come back as ok.

Can that Verify link be present all the time, so that the DNS settings can be checked again?