Most people looking for an ImprovMX alternative aren't complaining about ImprovMX. It forwards mail reliably, the free tier is genuinely useful, and it does the one job it advertises. The search usually starts on the day forwarding itself becomes the problem.
That day has a shape. Someone replies from the forwarded address and the reply arrives from their personal Gmail. Or a second person needs to answer hello@ and there's no way to give them access without sharing a password. Or a message never arrives and there's nothing to search, because nothing was ever stored.
This walks through what ImprovMX actually gives you, the two services people compare it against, and the point where a mailbox becomes the cheaper answer.
What ImprovMX Sells
Forwarding, priced by volume and domain count. The plans as they stand:
| Plan | Price | Domains | Aliases per domain | Forwarded per day | SMTP sends |
|---|---|---|---|---|---|
| Free | $0 | 1 | 25 | 500 | None |
| Light | $50/year | 5 | 25 | 5,000 | 25/day |
| Premium | $9/month | 30 | 100 | 5,000 | 6,000/month |
| Pro | $24/month | 100 | 200 | 15,000 | 30,000/month |
The free tier deserves credit. One domain, 25 aliases and 500 forwards a day covers a personal domain or a side project completely, and plenty of businesses run on it for years without paying anything.
Note the SMTP column, because it's the part people misread. Paid plans let you send through ImprovMX, which fixes the "replies come from the wrong address" problem. What it doesn't do is store anything. There's no mailbox, no IMAP, no folders and no search — mail passes through and lands wherever you pointed it.
The Three Walls That Send People Looking
Every ImprovMX alternative worth considering exists because of one of these three walls, so it's worth being precise about them.
A forward leaves no copy behind. When one fails, it's simply gone. If the destination inbox bounced, filtered the message into spam, or the client closed the account, there's no copy on the forwarding side to go back to. Support tickets that start "we never received your email" have no evidence to examine.
Shared addresses need membership, not a rule. Point billing@ at two people and both get a copy — but neither can see that the other already replied, and neither reply threads with the original. That's why the same customer gets answered twice. A shared mailbox solves it with actual membership: one mailbox, several people, everyone sees the whole thread.
Forwarding fights authentication. When a message is forwarded, the sending IP changes but the SPF record still names the original sender's servers, so the check fails at the destination. RFC 7208 documents this directly as a known limitation of forwarding. Providers work around it with sender rewriting, which helps and isn't free of side effects.
Cloudflare Email Routing: The Free ImprovMX Alternative
If the only thing you need is more forwarding for less money, this is the honest answer and it costs nothing. Email Routing gives you 200 routing rules per domain, 200 verified destination addresses per account, up to 30 domains per zone and 25 MiB inbound messages.
Compare that with ImprovMX Pro at $24 a month for 100 domains and 200 aliases each, and the free option looks strong on raw numbers. Cloudflare has also added Email Sending through Workers, REST and authenticated SMTP, so the old line that it can only receive is out of date.
The catch is the same one ImprovMX has, only more so. Routing has no mailbox behind it — no IMAP, no webmail, no storage — and Email Sending is built for applications sending notifications and password resets, not for a person answering mail. There's a fuller treatment in the Cloudflare Email Routing comparison.
Forward Email: The ImprovMX Alternative That Grew a Mailbox
This one has quietly changed category and most comparisons haven't caught up. Their free tier is forwarding only and can't send from your custom domain, which is the familiar shape. Enhanced Protection at $3 a month is not: it includes real IMAP mailboxes with 10 GB of pooled storage, unlimited aliases, roughly 9,000 outbound messages a month and API access, with extra storage at $3 per 10 GB.
So if your reason for wanting an ImprovMX alternative is "I need somewhere the mail actually lands," Forward Email crosses that line at a low price and deserves a look. Team is $9 a month for shared organisational access.
What you're buying at that price is storage and aliases. The tooling around the mailbox — searching a whole portfolio at once, reading accounts hosted somewhere else, attached file storage — is a different conversation, and it's the next section.
What an ImprovMX Alternative With Mailboxes Changes
Four things stop being workarounds once mail is stored rather than relayed.
Search that covers everything. Forwarded mail can only be searched wherever it landed, one destination at a time. Cross-mailbox search runs one query across every folder in every mailbox you can reach, server-side, so it works the same from a phone.
Rules that run at delivery. A forwarding rule decides where a message goes and nothing else. Server-side filters file, flag, forward or auto-reply at delivery time, so the result is identical in every client instead of living in one laptop's settings.
Addresses without mailboxes, still supported. Wanting a mailbox for hello@ doesn't mean wanting one for every address. Aliases and catch-all routing keep working exactly as they do now, including forwarding to an external address — you just stop being limited to that.
Files in the same account. Forwarding services don't hold attachments. Drive here is part of the account, oversized attachments become revocable share links automatically, and it mounts as a network drive over WebDAV.
When ImprovMX Is Still the Right Answer
Don't migrate for the sake of it. Stay if this describes you:
- You're one person, and every forwarded address lands in an inbox you already own and like.
- Nobody else needs to answer any of those addresses.
- You don't need a copy of anything — the destination inbox is the record.
- The free tier covers you, or Premium at $9 is cheaper than what you'd pay for mailboxes.
That's a real and common situation, and paying more would buy you capability you'd never open. The case for an ImprovMX alternative is the inverse: a second person on a shared address, a need to search or recover mail, or a domain that's turning into somewhere people actually work.
The Verdict, Whoever You Are
Forwarding suits a domain nobody works in. Every step away from that flips the answer.
One person, one domain. If mail lands in a Gmail account you like and you never need a copy, ImprovMX free is fine and free. The moment you want the mail stored somewhere you control — searchable, recoverable, portable — you want a mailbox, and our free tier gives you one on ten domains rather than one.
A team. This is where forwarding stops working rather than merely feeling thin. Two people on billing@ get copies, not a shared thread, so the same customer gets answered twice. Membership fixes it. So does storage capped per address, two-factor on each mailbox, and role addresses that don't multiply a bill because nothing is priced per seat — 4 people or 400.
Mail across several companies. An ImprovMX alternative built for that adds DNS applied for you at any registrar, bulk domain and mailbox creation, setup invites so client staff set their own passwords, address verification in the same account, and your own branding on the dashboard and webmail they log into.
Keep forwarding while the domain is a signpost. Move when it becomes a workplace — and it usually becomes one before anyone notices.
Frequently Asked Questions
Can ImprovMX send email, not just forward it?
Yes, on paid plans, with SMTP quotas from 25 a day on Light up to 30,000 a month on Pro. What it doesn't do is store sent or received mail, so there's no Sent folder and no history to search.
What's the cheapest ImprovMX alternative?
Cloudflare Email Routing, at no cost, if forwarding is all you need. It allows more domains and aliases than ImprovMX Premium and charges nothing for them.
Why do forwarded messages fail SPF?
Because forwarding changes the sending server while the original SPF record still lists the sender's own servers. It's an inherent property of forwarding rather than a provider bug, and it's why sender rewriting exists.
Can I keep forwarding some addresses and host others?
Yes, and with any ImprovMX alternative that's usually the sensible migration. Give real mailboxes to the addresses people work in, leave the rest as aliases or catch-all routing to wherever they go today, and change nothing else.
Does moving mean changing MX records?
It does, since inbound mail has to arrive somewhere new. It's a single DNS change per domain and the previous setup keeps working until it propagates, so there's no window where mail is dropped. See DNS setup.
Is an ImprovMX alternative with mailboxes much more expensive?
Less than people expect. Forward Email starts at $3 a month with 10 GB. Our free Nano plan covers 10 domains and 10 mailboxes each, so the comparison is often against zero rather than against $9.
What happens to my aliases when I move?
They come with you. Every alias, catch-all and forward-to-external rule you have now has a direct equivalent, and forwarding to an outside address stays available for the ones that shouldn't become mailboxes.
