Why teams move
to Vectis Mail.
Eleven side-by-side comparisons of Vectis Mail against the hosted services and self-hosted stacks teams are leaving behind. Each one is honest about what the other product does today, then shows where owning your mail server on Vectis Mail is the stronger fit — and exactly how to migrate across. Written by the team that runs Vectis Mail in production across Veltara Works infrastructure.
Direct comparisons
Each page has a side-by-side table, a clear read on where Vectis Mail is the stronger fit, and a migration walk-through.
vs Mailcow →
Same self-hosted stack, declarative YAML config, REST API, atomic updates with rollback.
- 14 vs 25+ containers by default
- Declarative config + 40+ endpoint REST API
- Atomic 6-phase updates with auto-rollback
vs Stalwart →
The proven Postfix/Dovecot/Rspamd engine with a transactional API and a support SLA — not a from-scratch rewrite of every protocol.
- A 20-year-proven engine, not a young reimplementation
- Declarative config + updates that roll themselves back
- A real transactional API and bundled webmail
vs Mox →
The multi-tenant platform you graduate to the day an app starts sending — RBAC, domain-scoped API keys and a support SLA on the proven Postfix/Dovecot/Rspamd engine.
- Multi-tenant RBAC + domain-scoped API keys
- IP warmup, Rspamd + ClamAV, per-domain analytics
- A vendor and a support SLA behind it
vs SendGrid →
Same API surface, no per-email pricing. Flat $0–$39/mo covers unlimited sending volume.
- Flat pricing instead of per-email metered billing
- Inbound webhooks + sending API in one platform
- Self-hosted, your IPs, your reputation
vs iRedMail →
Compared with the long-running OS-native open-source mail stack: REST API, declarative YAML, Rspamd by default.
- OS-native (iRedMail) vs Docker Compose (Vectis)
- Classic mail server vs 40+ endpoint REST API
- SpamAssassin default vs Rspamd by default
vs Mail-in-a-Box →
One-command personal email sovereignty vs API-first multi-domain infrastructure. When each is the right fit.
- Single-org one-command install vs multi-domain + API
- Bundled CalDAV/CardDAV vs Phase-4 roadmap
- CC0 public domain vs BSL 1.1 + commercial Pro
vs Postmark →
Flat $0–59/mo self-host vs the developer-loved transactional SaaS. Same API surfaces, mailbox hosting included, cost crossover in the mid-tens of thousands of emails/mo.
- Flat-price self-host vs per-email after the 10K base bucket
- Mailbox hosting included vs send + inbound parse only
- No Message Streams equivalent (gap called out explicitly)
vs Google Workspace →
Own your email instead of renting it per seat. Flat price, your server, standard IMAP/SMTP — for the email half of Workspace you actually want to control.
- Flat $0–$39/mo vs per-user-per-month
- Your data, your jurisdiction, zero lock-in
- Email only — keep Docs/Meet (we say so plainly)
vs Microsoft 365 →
Own your mailboxes instead of licensing them per seat. A self-hosted Exchange Online alternative on standard protocols — no Microsoft tenant lock-in.
- Flat pricing vs per-seat Exchange/Business licensing
- Standard IMAP/SMTP on your domain, no tenant lock-in
- Email only — not Office apps or Teams (stated plainly)
vs Proton Mail →
Privacy you own, not rent. Your VPS, your domain, standard protocols, no third party in the loop — a different threat model from hosted Proton.
- Privacy-as-ownership vs privacy-as-a-service
- Any client, your domain, no Bridge required
- Honest: not client-side E2E — by design
vs Migadu →
Migadu’s flat-rate, domain-unlimited ethos — but it’s your server, with a REST API and inbound webhooks Migadu doesn’t offer.
- Same flat-rate ethos, self-owned
- REST API + HMAC inbound webhooks
- Honest: you run a VPS; the orchestrator makes it tractable
Frequently asked questions
Which comparison should I read first?
Start with the page that matches what you're running today. Coming from Mailcow → vs Mailcow. Paying SendGrid or Postmark per email → vs SendGrid or vs Postmark. Outgrew Mail-in-a-Box → vs Mail-in-a-Box. iRedMail feels dated → vs iRedMail. Not sure yet? Read Best self-hosted email servers in 2026 for the whole landscape by buyer type.
Vectis Mail vs Mailcow vs iRedMail vs Mail-in-a-Box — what's different?
All four are self-hosted email platforms targeting different operators. Mailcow ships as Docker Compose, iRedMail installs OS-native, Mail-in-a-Box is one-command personal sovereignty on a single VPS. Vectis Mail targets a fourth slot: API-first, declarative YAML, atomic updates with rollback, and a 40+ endpoint REST API for agencies, SaaS, and multi-domain operators.
Vectis Mail vs SendGrid vs Postmark — are these even comparable?
On the API surface, yes: sending API, inbound webhooks, analytics, domain-scoped keys all match. On the operational model, no. SendGrid and Postmark are managed SaaS billed per email; Vectis Mail is self-hosted on your own VPS, billed flat ($0 Starter / $39 USD Pro per tenant per month, unlimited volume). Cost crossover with Postmark sits in the mid-tens of thousands of emails/month. Vectis Mail also includes full IMAP/POP3 mailbox hosting; SendGrid and Postmark do not.
Is there a comparison for Mailu, docker-mailserver, Mailgun, AWS SES, or Resend?
Not yet. The current 11 cover the highest-search-volume products. Mailu, Modoboa, Poste.io, docker-mailserver, Mailgun, AWS SES, and Resend are on the roadmap for the next batch. Want one prioritised? Contact us and we'll sequence the next set based on real reader demand.