Update docs/pages/infrastructure/domain-and-dns-security/dnssec-and-email.mdx

Co-authored-by: Matías Aereal Aeón <388605+mattaereal@users.noreply.github.com>

Author: gunnim

docs/pages/infrastructure/domain-and-dns-security/dnssec-and-email.mdx

@@ -97,7 +97,7 @@ Before setting CAA records, identify which CA issued your current certificate:
 **Setup process**: Add CAA records to your DNS zone. Most DNS providers allow you to add these through their web interface:
 
 With the issuers full name in hand we now need to map it to the "Issuer Domain Name".
-There is no centralized repository mapping public CA's to their issuer domain names but they are generally easily found with a simple search for f.x. "Let's Encrypt CAA".
+There is no centralized repository mapping public CAs to their issuer domain names, but they are generally easy to find with a simple search, for example: "Let's Encrypt CAA".
 
 ```
 # Allow only specific CAs to issue certificates