Who Is My Email Provider? How to Find Out in Two Minutes

If you're asking who is my email provider, there's a public record that answers it and you don't need a password to read it. Your domain's MX record names the mail servers that accept messages for you, and the hostname in that record almost always spells out the company. One lookup, two minutes, done.

Owners land on this question at awkward moments. A renewal notice arrives from a company nobody recognizes. Mail stops arriving and the developer who set it up in 2017 isn't answering. Or you're about to move your website and someone sensibly asks who hosts my email domain before anything gets unplugged. Here's how to get a straight answer.

The two-minute method: look up your MX record

MX stands for mail exchanger. It's a line in your domain's public DNS that tells the rest of the internet where to deliver mail addressed to you. When someone emails hello@yourbusiness.com, their mail server reads your MX record and hands the message to whatever server that record names. So the question of who is my email server has a published answer, and anyone can look it up, including you.

Pick whichever of these you're comfortable with. They all read the same record and they all return the same result.

1. 1Use a free checker. Paste your address, or just your domain, into the Venbit email checker. It reads the MX record, says one polite hello to your mail server to confirm it's answering, looks at SPF, DKIM and DMARC while it's in there, and tells you in plain words who hosts your email.
2. 2On a Mac or Linux terminal, run dig. Type `dig yourbusiness.com MX +short` and press enter. You'll get a short list of numbers and hostnames. The number is the priority, lowest tried first. The hostname is your answer.
3. 3On Windows, run nslookup. Open Command Prompt and type `nslookup -type=mx yourbusiness.com`. Same information, different wrapper. If you prefer the shorter flag, `nslookup -q=mx yourbusiness.com` does the same thing.
4. 4Or use MXToolbox in a browser. Go to mxtoolbox.com, choose MX Lookup, enter your domain and hit the button. It's the old standby and it works on a phone, which matters when you're standing in a parking lot wondering why nothing has come in since lunch.
5. 5Write down every hostname it returns. Most providers list two to five mail servers for redundancy, and they share a common domain. That shared part is the piece that identifies your provider.

Reading the answer

MX hostnames look cryptic for about five seconds, then they get obvious. You're looking for the company name sitting in the middle of the string. These cover most small businesses.

That last row is the one that confuses people. If your MX record points at a hostname on your own domain, your mail is almost certainly running on the same shared hosting account as your website, through cPanel or something like it. It works and it's cheap. It's also the setup most likely to have deliverability trouble, because you share a server reputation with every other site on that box.

If your hostname isn't in the table, don't guess. Copy the domain part of it, the bit after the first dot, and search it. An unfamiliar hostname usually belongs to a reseller, a spam-filtering service sitting in front of the real mailbox, or a regional host. That search takes ten seconds and beats assuming. If you typed how to find who is hosting my email into Google and landed here, verifying each hostname one at a time is the step that finishes the job, even when the record looks like alphabet soup.

Why your email host is often not your website host

This trips up more small businesses than anything else here. Your domain name, your website hosting, and your email can sit at three different companies, and DNS is what quietly holds them together. The A record sends web visitors to your website's server. The MX record sends mail somewhere else entirely. Neither one knows or cares about the other.

A very common setup around here looks like this: the domain was registered at GoDaddy years ago, the website got rebuilt on a modern host later, and email stayed on Google Workspace the whole time because nobody wanted to touch it. Three companies, one domain, all working fine. That's normal, not a mess. But it does mean the answer to who is my email host is a separate question from who runs your site, and you want both written down. Our guide on how to find out who manages your website hosting covers the other half.

Why it matters

This isn't trivia. Three real situations turn on knowing your email provider.

• Moving your website without killing your email. When a site changes hosts, the usual advice is to point the domain at the new server. Do that carelessly and the MX record gets wiped along with it, and mail stops cold with no warning at your end. Knowing your MX values before the move is what makes the move boring. The full process is in switching website hosting without losing email.
• SPF, DKIM and DMARC. These three DNS records tell receiving mail servers that a message claiming to be from you really is. They have to list your actual sending provider, so you can't set them correctly until you know who that provider is. Get them wrong and your invoices land in junk, which is the usual culprit behind business emails going to spam.
• Knowing who to call when mail stops. At 7am with nothing coming in, the worst position is not knowing whose support line to dial. Your website host can't fix a Microsoft 365 outage, and Microsoft can't clear your host's mail queue. The MX record tells you which one owns the problem.

If the MX record points somewhere you do not recognize

It happens, and it's rarely sinister. Usually an IT person or a developer set the mailboxes up under an account of their own, or email came bundled with something else and the reseller's name never came up again. Work through it in this order.

1. 1Search the hostname first. The company that owns it will have a support page. That alone often ends the mystery.
2. 2Check your bank and card statements for a recurring charge. Email is almost always billed to somebody. A $6 or $12 monthly line item you'd stopped noticing usually names the provider.
3. 3Look at the server settings inside your mail app. Outlook, Apple Mail and Thunderbird all store the incoming and outgoing server addresses you were given when the account was created. Those hostnames name the provider too, and they sometimes reveal the mailbox host hiding behind a filter.
4. 4Ask whoever set it up, in writing. If a developer or IT contractor owns the account, ask them to transfer it to an account in your business's name, or to add you as an administrator. Do this while the relationship is friendly.
5. 5Check who controls the DNS, not just the mailbox. Whoever can edit your MX record can redirect all your mail. If that's someone outside your business and you've lost touch, treat getting control back as urgent rather than someday.

If you'd rather hand this to someone

Most owners don't want to become DNS people. They just want mail to arrive and someone to call when it doesn't. Our website maintenance plans start at $99 a month and include keeping your DNS, mail records, and hosting in order, so a hosting change never takes your email down and nobody has to reconstruct the setup from memory.

We're in Mill Creek, north of Seattle, and we've been untangling domains, hosting and email for small businesses since 2011, around the Puget Sound and remotely. If your lookup came back with something odd, call (425) 314-1415 or send it over and we'll tell you what you're looking at.