a client of mine has external DNS servers – the domain registrar is one and the name servers another – the latter located on Cloudflare.

The problem is I don’t have access to the name servers and therefore the DNS settings, they are located on an inactive account where no passwords is available.

I’m going to relink it to a new website.

What I’m wondering is if I change the external DNS servers, the name servers, to point to a new name server, inputing all the old records on the new name server (in this case I will use cloudflare once more) (see below) – will all the functionality remain, the email, etc… – or am I missing something critical, perhaps something to do with SPF records? I don’t want to loose any functionality of the website or mail whilst doing this.

Thanks in advance to anyone who can help

`;; A Records
app.---.se. 1   IN  A   130.211.89.142
---.se. 1   IN  A   100.24.208.97
---.se. 1   IN  A   35.172.94.1

;; CNAME Records
epost.---.se.   1   IN  CNAME   ghs.googlehosted.com.
kalender.---.se.    1   IN  CNAME   ghs.googlehosted.com.
www.---.se. 1   IN  CNAME   s.multiscreensite.com.
*.---.se.   1   IN  CNAME   zocalo.se.

;; MX Records
---.se. 1   IN  MX  30 aspmx3.googlemail.com.
---.se. 1   IN  MX  30 aspmx4.googlemail.com.
---.se. 1   IN  MX  20 alt2.aspmx.l.google.com.
---.se. 1   IN  MX  10 aspmx.l.google.com.
---.se. 1   IN  MX  30 aspmx5.googlemail.com.
---.se. 1   IN  MX  30 aspmx2.googlemail.com.
---.se. 1   IN  MX  20 alt1.aspmx.l.google.com.

;; TXT Records
---.se. 1   IN  TXT "v=spf1 include:aspmx.googlemail.com ~all"
---.se. 1   IN  TXT "ca3-b3756d5e9dd54f9490738f1b613148af"
`

I haven’t yet tried, however, I don’t want the website to have any downtime or the mail adresses not working.