Mail that lands in the inbox, not the spam folder.
Self-hosted email platforms built on Postfix, Dovecot and Rspamd - with the authentication, reputation and migration work that decides whether your mail is actually delivered. We run this in production, not just design it.
What we actually deliver.
Mail platform build
Production mail servers with SQL-backed virtual domains and mailboxes, sized for the volume you actually send rather than a default install.
- Postfix, Dovecot, SQL virtual domains
- Multi-domain and multi-tenant setups
- Quota, retention and archival policy
Authentication & deliverability
SPF, DKIM and DMARC taken to enforcement through monitored escalation - not set to p=reject on day one and hoped for.
- SPF, 2048-bit DKIM, DMARC to p=reject
- MTA-STS and TLS-RPT enforcement
- Forward and reverse DNS correctness
Reputation & warm-up
Sending reputation built gradually on clean IP space. Launching a new platform at full volume is the most common cause of landing in spam.
- Staged volume warm-up plan
- IP and domain reputation monitoring
- Blocklist detection and remediation
Spam, virus & abuse control
Rspamd and ClamAV tuned against your real mail, plus outbound controls - one compromised mailbox can undo a year of reputation in a day.
- Rspamd tuned to your corpus, not defaults
- ClamAV scanning on inbound attachments
- Outbound rate limits and abuse detection
Migration
IMAP-level migration preserving folders, flags and dates, run incrementally so users keep working through the move.
- Incremental sync then short delta cutover
- Calendar, contacts and shared mailboxes
- Old system kept read-only after cutover
Mail APIs & product integration
IMAP and SMTP wired into products - programmatic mailboxes, scheduled send, search indexing and transactional flows.
- IMAP/SMTP integration for applications
- Header indexing for fast search
- Transactional and bulk send separation
A sequence that de-risks delivery.
Audit what you have
Current DNS records, authentication state, sending volume and reputation. Most deliverability problems are visible in DNS before anyone opens a server.
Design for the volume
Architecture sized to real sending patterns, with transactional and bulk mail separated so a marketing send cannot damage password-reset delivery.
Build, authenticate, warm up
Platform stood up, authentication monitored in report-only mode, then escalated to enforcement as volume ramps on a staged plan.
Migrate and hand over
Incremental mailbox migration, a short cutover, then either runbooks for your team or the platform onto our managed services retainer.
What clients measure afterwards.
Inbox placement
Authentication and reputation work that moves mail out of spam folders.
Zero-loss migration
Folders, flags and dates preserved, with users working throughout.
Per-seat fees removed
Licensing cost replaced by infrastructure you control, where the maths works.
Data residency met
Mail held in the jurisdiction your obligations require.
Work we have actually delivered.
Built a self-hosted email server that lands in the inbox, not spam.
- p=reject
- DMARC · inbox-grade
- TLS 1.3
- Encrypted end-to-end
Migrated inboxes between providers with zero data loss.
- 7
- Migration provider presets
- Live
- DKIM/SPF/DMARC verify
Built a Gmail-style webmail app with AI writing built in.
- 22
- Real mail API routes
- 84-156ms
- Index-served list load
Tools we work fluently in.
- Postfix
- Dovecot
- OpenDKIM
- MTA-STS
- TLS-RPT
- Rspamd
- ClamAV
- Greylisting
- RBL / DNSBL
- PostgreSQL
- Maildir
- Header indexing
- Object storage
- Prometheus
- Queue monitoring
- Reputation alerting
- Ansible
Senior engineers, accountable outcomes.
We operate mail, not just deploy it
We run production mail platforms with SQL-backed mailboxes across multiple domains. The failure modes we design around are ones we have been paged for.
DMARC reached, not declared
p=reject on day one blocks your own legitimate mail. We monitor reports first and escalate once the sources are known and fixed.
Outbound is treated as seriously as inbound
Most reputation damage is self-inflicted through a compromised account. Rate limits and abuse detection are part of the build, not an afterthought.
We will tell you not to self-host
For most companies a hosted suite is cheaper and less work. Self-hosting has to be justified by licensing cost, residency or programmatic control.
Questions, answered.
The questions IT leaders, CTOs and platform owners ask us most often before moving or building mail infrastructure.
- For most companies you should not - the hosted suites are cheaper and less work. Self-hosting earns its keep in three situations: per-seat licensing that has become significant at your headcount, data residency or sovereignty requirements a hosted suite cannot satisfy, and products that need programmatic control over mail flow rather than a mailbox. We will tell you which of those applies to you, and if none does, we will say so.
Book a mail infrastructure call - leave with a deliverability audit.
A 45-minute session with an engineer who operates mail platforms. We check your authentication records and sending posture, and identify what is most likely hurting delivery - and you leave with that, whether you engage us or not.
Tell us about your project.
Briefs, NDAs, architecture reviews, anything goes. A senior engineer responds within 24 hours.
- Email[email protected]
- Phone+91 99228 74956
- LocationsHyderabad · Pune · Bangalore
- 1 · A senior engineer reviews your brief within 24 hours.
- 2 · We schedule a 30-minute discovery call.
- 3 · You receive a written proposal in 48-72 hours.