sora

Cloud-native, hackable IMAP/LMTP/POP3 mail server with S3-backed storage and clustering built in.

PlatformWebfree

Sora is a cloud-native email server supporting IMAP, LMTP, POP3, and ManageSieve, with message bodies stored in S3-compatible object storage and metadata in PostgreSQL. It includes shared mailboxes with ACLs, gossip-based clustering, automatic TLS certificates, and proxy load balancing. It is built for engineers operating production-scale or multi-tenant email hosting infrastructure.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of sora - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

Claim sora to unlock →

Try Matchbox with your own problem

Describe what is not working - we’ll show you whether sora (or something else) actually fits.

Try a problem