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The check that keeps a change from cutting off your email

You'll know what to check on your domain before and after any change, so you don't lose email without noticing.

By Yodai · Published September 6, 2026 · Updated October 12, 2026

4 min read

You're already writing exclusively from your domain's email. You switch hosts, switch designers, or just log into your domain's panel to add a new tool. Everything looks fine, the website loads just like always, until one day you realize it's been more than a week since you got a single email. Nobody warns you when email breaks: it just stops arriving quietly, which is why it takes you a while to notice.

Your email and website addresses are set up in the same place, your domain's DNS zone, but they're different records within it. Changing one can wipe out the other without anyone noticing at the time.

Two changes that aren't equally risky

Not everything you touch in your domain carries the same risk. One kind of change only moves the website and leaves email untouched, and another moves the whole zone (website and email together), and if nobody copies what was there beforehand, it's simply gone.

What exactly you're touching
Changing only where your website lives
  • Only the records that point your domain (and its www version) to the new website's server get touched
  • Your email records (the one that receives mail, MX, and the three signature records: SPF, DKIM, and DMARC) don't move unless someone deletes them
  • Low risk, as long as whoever's doing it knows exactly which record they're touching
Changing who manages your domain's DNS
  • The whole zone moves to a new panel, which may start out empty or with only some of the records
  • If nobody copies the email records first, email stops arriving, and you never asked for that
  • It often happens without warning: a new agency "simplifies" things by moving everything to its own panel

Which one applies to you: If you're only changing where your website lives, check that nothing else got touched. If you're changing who manages your DNS, copy everything first: otherwise, you could end up without email even though nobody meant for that to happen.

The second case is the one that can really catch you off guard, because nobody tells you "I'm about to delete your email." They tell you "I'm going to tidy this up for you," and email falls by the wayside without ever being part of the conversation.

The check, step by step

Before and after any change that touches your domain
  1. 1Write down what's there before you touch anything
    Go to your domain's panel, to the DNS zone, and copy the MX records and your three signature records (SPF, DKIM, and DMARC). It's usually just a few lines; a screenshot works fine, and it takes a minute.
  2. 2Make the change you need
    Switch hosting, switch agencies, add the new tool you wanted. It's your business, go right ahead.
  3. 3Go back to the DNS zone and compare
    Are the records you wrote down still there, exactly as they were? If any are missing, it wasn't your website that broke: it was your email.
  4. 4If something's missing, you recreate it yourself
    You don't need to understand the technical side for this: just copy the exact value you already wrote down into the matching record.
  5. 5Send a test email
    From your email to one of your own Gmail or Outlook accounts: if it arrives and doesn't land in spam, you're done. If it doesn't arrive, you find out now, not three weeks from now when a customer says they wrote to you and never got a reply.

The mistake well-meaning agencies make

They move your DNS without warning you that your email lived there
You hire someone for your new website, and to make things simpler to manage, they switch your domain's nameservers over to their own panel. The website works just as well. Email doesn't: its records stayed behind in the old zone, and nobody moved them over. You can avoid this with one line before granting access to your domain: ask them to touch only the website's records and leave the nameservers alone; if moving them is truly necessary, ask for the exact list of what they'll recreate first.

You don't need to understand DNS to do this check. You need the habit of looking before and looking after, every time someone touches your domain, even in passing. A hosting switch should never cost you a customer who wrote to you expecting a reply.

With this, you wrap up the course: your domain and your email are fully yours, and you know what to check every time someone works on them, so a website change never takes an order down with it.

What you'll walk away with
  • You know which changes break only your website and which ones take your email down with it
  • You've built the habit of writing down your email records and signatures before touching your domain
  • You know what to ask whoever manages your domain so they don't move the nameservers without telling you
  • You close out every change with a test email, instead of just assuming it worked

In Yodai you connect the domain you already have to your site, and it stays registered where it is, in your name. See how your own domain for your website works.

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