Ruber

Compared

Ruber vs Proton Mail

Proton built the most private mailbox available and is very good at being that. If the strongest possible privacy for personal mail is what you are buying, buy it from them — this page will not talk you out of it.

CapabilityRuberProton Mail
Access
Connect any IMAP clientDirectThrough Proton Mail Bridge
Building on it
Create mailboxes from codeREST API and signed webhooksAdmin interface
Run the mail plane in your own cloudPostfix, Dovecot and Rspamd in your VPC—
White-label the whole surfaceOn the your-cloud mail plane—
Commercial
What you are billed forOne price for one person on Personal and Pro; per user on Business — extra addresses includedPer user
Privacy posture
Zero-access encryption—Yes
Published third-party audits—Yes

— means not part of that product's published offering at the time of checking. It is not a statement about what either of us is capable of.

Where it goes against us

Proton is zero-access encrypted, open source and independently audited. We are none of those things — no audit, no certification, and message bodies stored in a form we could read. If that is what you are buying, buy it from them.

Try it instead of reading about it.

Thirty days on a domain of your own, with no card asked for. It is enough to see whether the parts above are true.

Create a mailbox

Compare with something else

Fastmail, Gmail, Google Workspace, Migadu and Proton Mail are trademarks of their respective owners, none of whom are associated with ruber.me or have endorsed this comparison. Descriptions reflect each product's published offering.