Almost everyone who has owned domains for a few years owns more than they use. A project that never launched, the name from before the rebrand, the common misspelling bought defensively, the country variant registered because it seemed prudent. Parked domain email is the question of what happens to messages sent to those names, and the usual answer is that nobody knows, because nobody set anything up.
The mail doesn't queue politely. It bounces, or it disappears, and you never learn what was sent.
What Actually Happens Now
A domain with no mail configuration produces one of two outcomes, and neither is visible to you.
If there are no MX records, the sending server discovers the domain accepts no mail and returns a bounce, as RFC 5321 requires. The sender learns something went wrong; you learn nothing. If the domain points at a registrar's parking service, behavior varies — some accept and discard, which is worse, because the sender believes it was delivered.
Either way parked domain email is a one-sided loss. Someone tried to reach you at an address they had good reason to think worked, and the attempt left no trace on your side. For a former trading name or a misspelling of your live domain, that's a customer who concluded you ignored them.
The Minimum That Fixes It
Parked domain email needs only two pieces: MX records pointing at a mail host, and a catch-all so every address at the domain resolves without anyone creating individual mailboxes.
Catch-all is the part that makes parked domain email practical. You have no idea which addresses people will use — info@, sales@, a name from a business card printed in 2019 — and creating mailboxes for guesses is pointless. A catch-all accepts all of them into one place.
On our free plan that costs nothing: ten domains, catch-all included, read over IMAP in whatever client you already use. The mechanics are in how a domain catch-all works, and what the free plan covers is in the ten-domain free plan.
The important limitation on the free tier is that catch-all delivers into a mailbox on the same domain. Sending everything onward to an outside address is external forwarding, which needs a paid plan, and mailbox-less forwarding addresses start on Pro. If your intention is that parked domain email lands in your existing Gmail without you logging in anywhere else, that's a paid arrangement rather than a free one.
When the Parked Name Was Your Name
A catch-all is the right shape for a domain nobody has ever written to. It's a blunt one for the name you traded under until last year, because parked domain email arriving at a former trading name is addressed to people rather than to the company in general — alex@, the person who handled a particular account, someone who left in 2023. All of it landing in one mailbox means somebody re-routes it by hand every morning.
A domain alias is what that case actually needs, and it lives on the Routing tab of the parked domain. You point the parked name at the live one, and every address that already exists on the live domain starts receiving on the parked name too: mail to sales@oldname.com arrives wherever sales@yourdomain.com arrives, and nobody created a single address twice. The match is on the part before the @, so a mailbox added next month works on both names the moment it exists, and one deleted stops working on both without leaving a stale rule behind. That is the thing a catch-all can't do with parked domain email: put each message in front of the person it was written to.
What doesn't exist on the live domain doesn't get in, with one exception, and it's the arrangement recommended above. If the live domain runs a catch-all of its own, matching hands the unknown names to it and the parked name inherits that behavior wholesale. Without one, an unknown name falls back to the parked domain's own catch-all if you kept it, and is otherwise refused during the SMTP conversation, so the sender is told rather than left guessing. Anything you deliberately created on the parked domain — a mailbox, an alias, a forwarding address — wins over the match, which is how one old address can keep going somewhere different from the rest. The full order the rules are tried in is set out in routing incoming mail for a domain.
Three things to know before planning parked domain email around it. It receives only: there is no sending from the parked name and no signing in on a matched address, so replies leave from the live address, which after a completed rebrand is usually what you wanted anyway. It isn't on the free plan — matching starts on Starter at $4 a month, where the catch-all arrangement above costs nothing. And both ends have to be domains you host here with their MX pointing at us, which means the parked name needs the same DNS work described above either way. If the live domain's records stop being healthy, matching pauses rather than misdelivering, and picks up again when the domain does.
Several parked domains can point at the same live one, which is the usual shape after a rebrand, an acquisition and a country variant or two. What you can't build is a chain: a domain that is already receiving matched mail for someone else can't hand it on again.
Typo Domains Are the Same Problem
Defensive registrations against misspellings deserve the same treatment, and they're the case where the value is easiest to see.
Somebody types gnail instead of gmail, or transposes two letters in your company name, and the message goes nowhere. With a catch-all on the typo domain it arrives, you read it, and you reply from the correct address. The customer never knows anything happened.
Matching is worth a thought here as well, for a reason other than convenience. It accepts only the names that exist on your live domain and refuses the rest, so a typo domain sitting one letter from another company's name stops collecting their correspondence, and the parked domain email you do get narrows to the part actually meant for you.
Two cautions worth stating. Volume on typo domains can be surprisingly high, because automated systems make the same mistake repeatedly and never correct it. And you'll receive mail plainly intended for someone else entirely, particularly if the typo variant is close to another company's name — the appropriate response there is to leave it alone rather than read it.
What You'll Actually Receive
Setting expectations for parked domain email honestly, because the first month is noisier than people anticipate.
Most of what arrives at a catch-all on an old domain is junk. Addresses harvested years ago stay on lists forever, and a catch-all accepts every one of them. Expect a lot of noise and a small number of genuinely useful messages — the useful ones being why the arrangement is worth having.
The signal tends to be: correspondence from a supplier still holding your old details, mail from a customer using a business card from a previous trading name, and legal or administrative notices sent to whatever address a database still holds. Any one of those is worth more than the annoyance of the rest.
Filing helps. A rule that moves everything from parked domains into one folder keeps it out of your working inbox while remaining searchable, and that's usually the right arrangement rather than trying to filter individual senders.
Getting the DNS Right Once
The only configuration is MX records, and the one detail worth attention is that they replace whatever is there rather than adding to it. A parked domain pointing at a registrar's mail service will keep using it until the old records are gone.
Propagation follows the record's TTL, so a domain with a long TTL keeps sending mail to the old destination for hours after you change it. Lower the TTL a day before the change if the timing matters, which for a genuinely parked domain it usually doesn't.
When to Retire the Address
Parked domain email isn't meant to run forever at full attention, and there's a natural end to it.
After a year, look at what arrived. If nothing legitimate has come through, the domain is genuinely dormant and you can stop reading it without stopping accepting — the catch-all costs nothing and the mail is there if a question ever arises. If the flow of real correspondence is still meaningful, that tells you people are still using the old details, which is useful information about how long a rebrand actually takes to propagate.
The decision worth avoiding is turning the MX records off again. That returns you to the original position where you don't know what you're missing, and it's the one arrangement with no upside.
The Wider Case
Once several parked domains are catching mail, the arrangement generalizes usefully.
Domains you're evaluating before committing can be set up the same way, so you find out whether anybody writes to them before deciding. Domains held for clients or for future projects can be caught centrally rather than each needing its own configuration. And a domain being retired can be transitioned gradually — mail still arriving, nothing lost, while the change propagates through everyone else's records at its own pace. Matching is what makes that stretch of parked domain email painless, because each person keeps their own address on the old name for as long as it takes.
The underlying point is that a domain you own but don't use is currently a small hole in your correspondence. Parked domain email closes it for nothing, and the only real cost is a folder you check occasionally.
