Autodiscover requests

Hi there. My Wordfence WAF live traffic logs shows hundreds of requests daily for the following:

Activity Detail
“Hong Kong, Central District, Hong Kong tried to access non-existent page https://sips.asia/autodiscover/autodiscover.xml”

I also receive the same autodiscover errors from other offices of our organization.

I was advised by Siteground domain hosting (and through general internet search) to add the autodiscover URL to ‘Whitelisted 404 URLs’ section, and to whitelist my IP address, which I have done. It makes no difference.

Has anyone come across this problem and resolved it? If so, any tips please? Apologies if I have not explained it very well. Thanks

The page I need help with: [log in to see the link]