OpenEmail against
Mailchimp
line by line.
Their list price is $13 / month at 500 contacts, checked in August 2026. Ours counts domains rather than people, so the two lines below diverge with the size of your team.
What they are better at
Campaigns, audiences, landing pages and reporting that a marketing team can run without help. Decades of deliverability work behind the sending.
Why people move
The bill follows the contact list, so the cost of keeping an address is the cost of having collected it. It is also a broadcast tool rather than a mailbox: nobody replies to a campaign and reads the answer in Mailchimp. OpenEmail charges per workspace and the replies land in an inbox.
Forward Emailforwarding only
FastmailStandard
OpenEmailper domain
Google WorkspaceBusiness Starter
Superhuman+ WorkspaceLine by line.
Mailchimp is not a mailbox, so it is not on this table. The table compares the places mail actually lands, which is the choice Mailchimp sits beside rather than replaces.
| Compared | OpenEmail per domain | Fastmail Standard | Proton Mail Mail Essentials | Google Workspace Business Starter | HEY for Domains per person | Superhuman + Workspace |
|---|---|---|---|---|---|---|
| What you actually pay for | The workspace | Each person | Each person | Each person | Each person | Each person, twice |
| Five people, every month | $30 | $25 | $34.95 | $35 | $58 | $160 |
| Twentieth person costs | $0 | $5 | $6.99 | $7 | $12 | $32 |
| Hosts the mail itself | a client on top of Gmail or Outlook | |||||
| Catch-all on your own domain | yours to switch on | paid plans | via a routing rule | aliases; catch-all not documented | whatever the host does | |
| Free on your own domain | one domain, ten addresses | trial only | custom domains are paid | trial only | no trial on domains | trial only |
| Drafts, subjects and answers from AI | writing assistant only | Gemini | Business tier | |||
| Your own agent can work the inbox | MCP server | JMAP API | API, no MCP | |||
| End-to-end encryption | between OpenEmail mailboxes | their whole point | enterprise tiers |
