How many es can you find in:
Q: Implications of hosting CNAMES and A records on separate name servers We host several websites but in most cases the client hosts their own DNS and mail separately.
I want to set up a system where we will create a subdomain on our domain for each client site which will act as the clients A record, so we can control the IP.
For example on the clients name server for domain clientwebsite.com set up:
@    CNAME clientwebsite.sharedhostingenv.com
www  CNAME clientwebsite.sharedhostingevn.com

And on our name servers create the subdomain on sharedhostingenv.com:
clientwebsite IN A 222.33.55.66

Will the fact that the client no longer hosts their own A record have any effect on any other records they have? Will this adversely affect any MX records that the client hosts?
edit:
Thank you for the feedback!!! I cant comment, but cheers.

A: Dont do this:  
@    CNAME clientwebsite.sharedhostingenv.com

That will break all other resource records for your clients domain. See this Q&A for a long explanation. 
Second when using FQDNs in DNS zones, do not omit the trailing . dot.
In DNS shorthand an entry such as clientwebsite.sharedhostingevn.com in your clients example.com. DNS zone effectively becomes: clientwebsite.sharedhostingevn.com.example.com. 

user
There are 134 "e"s in the text you provided.
assistant