Maybe you are all confused about emails that sometimes don’t go in or have a small capacity on InfinityFree which is only 20MB on Roundcube? You can use Integration from Zoho so that you get 5GB capacity / user by using email services from Zoho and the maximum user in one domain is five users (including Admin)
Note: Only applies to domains and does not apply to subdomains provided by InfinityFree
Note: Website that has been integrated into Cloudflare because it will later be used for website verification, InfinityFree does not provide this and must use parties when such as Cloudflare. If you are not connected to Cloudflare then you can find ways to connect the Website to Cloudflare
Note: Verify the Website uses TXT Record and later enter the MX record and SPF and DKIM verification so that it is not considered spam, there are guidelines after you register there
Note: Free Domain From Freenom Is Not Supported To Avoid Spam, Please use a paid domain
You can go here: Erstellen Sie benutzerdefinierte Domain-E-Mail-Adressen in Zoho Mail – Kostenlos für 5 Benutzer
And you can register using the original data and be sure to use the data that can be contacted because if something happens like forgetting your password and so on it can be easy to reset
You can also use mail.yourdomain.com as easy access to e-mail if you have done all website verification
After registering you will be guided to verify the website, please fill in what is required on the DNS menu in Cloudflare and maybe that’s all I can provide information, hopefully useful
I’m not an Admin, this is just a tutorial that I gave so that free hosting from InfinityFree is more optimal to use and apologize for not being accompanied by a picture because I registered first and didn’t get a screen shot one by one.