Automation & business apps

Postfix VPS HostingA Mail Server or SMTP Relay You Control

Postfix is one of the most widely used mail transfer agents. We install it on a hardened KVM VPS either as a full mail server with Dovecot for IMAP, or as a send-only relay your applications use to send mail.

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Full root & SSH NVMe storage Daily backups Anti-DDoS 99.9% uptime SLA 11 locations

  • Dedicated IPv4 and IPv6

    Your own sending addresses.

  • Full root access

    Every Postfix setting is yours.

  • NVMe storage

    Fast queues and mailboxes.

  • Daily backups

    Automatic backup of the previous 24 hours.

Why a VPS

Why Run Postfix on a VPS

A mail server is a small program with big consequences. Postfix is well documented, light on resources and runs for years with little change.

  1. Light on resources

    Postfix and Dovecot run comfortably on a small plan.

  2. A relay for your applications

    Send application mail through your own server instead of a third-party service.

  3. Mailboxes without a mail suite

    Postfix with Dovecot gives IMAP mailboxes without the weight of a groupware product.

  4. Rules you set

    Routing, limits and filtering under your control.

The stack

How Postfix Is Set Up

Postfix receives and sends mail; Dovecot serves mailboxes; OpenDKIM signs outgoing mail.

Request from a browser or app (HTTPS)

  1. Mail transfer

    Postfix

    Receives mail from the internet and sends your outgoing mail.

  2. Mailbox access

    Dovecot

    IMAP and authentication for mail apps (mail-server setup only).

  3. Signing

    OpenDKIM

    DKIM signatures on outgoing mail for your domain.

  4. Certificates

    Let's Encrypt

    TLS for SMTP submission and IMAP.

  5. Storage

    NVMe on the VPS

    Mail queue and mailboxes.

Worth knowing

  • A send-only relay needs no Dovecot and no mailboxes: applications connect and Postfix delivers.
  • Mail needs a fully qualified hostname, a matching reverse DNS entry (we can set it for your IP on request), and SPF, DKIM and DMARC records.
  • Outbound port 25 is open on our VPS plans, but receiving servers still judge your IP and records before accepting mail.
  • Back up /etc/postfix, /etc/dovecot and the mailbox folders together.
What you can run

What You Can Run

  • An application SMTP relay

    Send password resets and notifications from your apps.

  • A small mail server

    Mailboxes for a few domains over IMAP.

  • Mail forwarding and aliases

    Receive for a domain and forward to other addresses.

  • Internal-only mail

    Mail between your own systems, never sent to the internet.

  • A mail gateway

    Receive, filter and pass mail on to another server.

  • A mail test environment

    Test how your software behaves with a real SMTP server.

VPS Plans

VPS Plans for Postfix

Postfix and Dovecot are light. VPS-1 runs a small mail server or relay; choose VPS-2 or above for many mailboxes or filtering.

VPS-1

Small websites, APIs, bots and development servers.

₹1,008 /mo
Get Started
  • 2 vCores
  • 4 GB RAM
  • 40 GB NVMe
  • 500 Mbps
  • Full root and SSH access
  • Free initial stack installation
  • Server hardening and firewall setup
  • Daily backup of the previous 24 hours
  • Unlimited traffic *
  • Anti-DDoS protection
  • Dedicated IPv4 and IPv6
  • KVM virtualisation
Most Popular

VPS-2

Production apps, WordPress and online stores.

₹1,906 /mo
Get Started
  • 4 vCores
  • 8 GB RAM
  • 75 GB NVMe
  • 1 Gbps
  • Full root and SSH access
  • Free initial stack installation
  • Server hardening and firewall setup
  • Daily backup of the previous 24 hours
  • Unlimited traffic *
  • Anti-DDoS protection
  • Dedicated IPv4 and IPv6
  • KVM virtualisation

VPS-3

Busy stores, SaaS products and several projects.

₹2,748 /mo
Get Started
  • 6 vCores
  • 12 GB RAM
  • 100 GB NVMe
  • 2 Gbps
  • Full root and SSH access
  • Free initial stack installation
  • Server hardening and firewall setup
  • Daily backup of the previous 24 hours
  • Unlimited traffic *
  • Anti-DDoS protection
  • Dedicated IPv4 and IPv6
  • KVM virtualisation

VPS-4

High-traffic apps, large databases and agencies.

₹5,274 /mo
Get Started
  • 8 vCores
  • 24 GB RAM
  • 200 GB NVMe
  • 3 Gbps
  • Full root and SSH access
  • Free initial stack installation
  • Server hardening and firewall setup
  • Daily backup of the previous 24 hours
  • Unlimited traffic *
  • Anti-DDoS protection
  • Dedicated IPv4 and IPv6
  • KVM virtualisation

* Unlimited traffic in Europe and North America. In Mumbai, Singapore and Sydney a monthly allowance applies (VPS-1 500 GB, VPS-2/VPS-3 1 TB, VPS-4 3 TB), then speed is limited to 10 Mbps until the next month.

Prices exclude 18% GST, which is added to invoices for customers in India.

Sizing guide

Which Plan for Your Postfix Server

Mailbox storage and any spam filtering drive the size, not Postfix itself.

Recommended VPS plan for each Postfix workload
Workload Start with Why
A send-only relay VPS-1 2 vCores · 4 GB RAM 2 vCores and 4 GB RAM; far more than a relay needs.
A small mail server VPS-1 2 vCores · 4 GB RAM Postfix and Dovecot with room for mailboxes.
Many mailboxes and filtering VPS-2 4 vCores · 8 GB RAM 8 GB RAM and 75 GB NVMe.
Large mailboxes or archives VPS-3 6 vCores · 12 GB RAM 100 GB NVMe and 6 vCores.

A starting point, not a limit: every plan upgrades in place, keeping your data, IP address and configuration.

SMTP Service or Your Own Postfix Server?

A relay service removes the deliverability work. Postfix gives you the server and the responsibility.

Feature Hosted SMTP service Postfix VPS
Pricing Per message volume Flat server cost
Deliverability Managed by the provider Yours: reverse DNS, SPF, DKIM and DMARC
Limits and rules Set by the provider Set by you
Mailboxes Usually not included Add Dovecot for IMAP mailboxes
Server administration Handled by the provider Yours, after our free setup
See Plans
After handover

Looking After Your Postfix Server

Day-to-day tasks after handover.

  1. Check the configuration

    Reports mistakes before you reload.

  2. Reload after changes

    Apply a new configuration.

  3. See the mail queue

    Waiting and deferred messages.

  4. Follow the mail log

    Useful when testing delivery.

  5. Test a send

    Send a message from the command line (needs the mailutils package).

# 1. Check the configuration

sudo postfix check

# 2. Reload after changes

sudo systemctl reload postfix

# 3. See the mail queue

sudo postqueue -p

# 4. Follow the mail log

sudo journalctl -u postfix -f

# 5. Test a send

echo "test" | mail -s "Postfix test" [email protected]

Example shell commands; adjust paths, names and versions to your project.

Example commands; adjust names, paths and versions to your project. Deploying and maintaining your application is yours to do (or ask us for a quote).

Free one-time setup

Installed and Secured Before You Log In

The VPS is unmanaged: after handover the server is yours to run. Before that, our engineers do the first setup once, free, so you start from a hardened server with Postfix in place.

  1. Choose a plan and location

    Pick the resources you need and the datacentre closest to your users.

  2. Tell us your Postfix setup

    Versions, database and domain: at order or right after.

  3. We install and secure it

    Server hardened, Postfix installed and tested, HTTPS on your domain.

  4. You take over with root

    SSH access to a working server, ready for your code and data.

Your Postfix setup

  • Postfix configured as a mail server or as a send-only relay, as you choose at order
  • Dovecot for IMAP when you want mailboxes
  • OpenDKIM with a key for your domain
  • A Let's Encrypt certificate for the mail hostname
  • DNS records (MX, SPF, DKIM, DMARC) left for you to publish; we tell you which

Yours to run after handover

  • Ongoing server administration
  • Application maintenance and updates
  • Debugging your code
  • Migrating existing sites or data

Not included in the free setup, but we can quote for it. No control panel by default: CloudPanel, HestiaCP or Virtualmin on request at no cost; cPanel and Plesk need their own licence.

Under the hood

Platform Specs and Locations

The same KVM platform on every plan; only the CPU, RAM, storage and port speed change.

VPS platform specifications
Virtualisation KVM with reserved vCores and RAM
Storage NVMe SSD on every plan
Network Dedicated IPv4 and IPv6, 500 Mbps to 3 Gbps per plan
Operating systems Ubuntu 26.04, 24.04 and 22.04 LTS · Debian 13, 12 and 11 · AlmaLinux · Rocky Linux · Fedora · FreeBSD
Access Full root over SSH, key-based login
Backups Automatic daily backup of the previous 24 hours; snapshots and longer retention on request
Protection Always-on anti-DDoS mitigation
Availability 99.9% uptime SLA

Secured before we hand it over

  • Non-root sudo user created for daily work
  • SSH key login, password login for root disabled
  • Firewall (UFW) open only for the ports you use
  • Fail2ban blocking repeated login attempts
  • Automatic security updates enabled
  • Free Let's Encrypt SSL on your domain
  • Timezone, swap and hostname configured

Asia-Pacific

  • Mumbai
  • Singapore
  • Sydney

Europe

  • London
  • Limburg
  • Roubaix
  • Gravelines
  • Strasbourg
  • Milan
  • Warsaw

North America

  • Beauharnois

Availability per location changes with demand; we confirm your location before setup. In Mumbai, Singapore and Sydney each plan includes a monthly traffic allowance (VPS-1 500 GB, VPS-2 and VPS-3 1 TB, VPS-4 3 TB); beyond it, speed is limited to 10 Mbps until the next month.

Who it's for

Who a Postfix VPS Suits

  • Developers who need an SMTP relay

    Application mail through a server you run.

  • Small teams with a few mailboxes

    IMAP mail without a heavy suite.

  • Administrators who like control

    People comfortable with mail server configuration.

Running it well

Security and Performance for Postfix

Security

  • Never run an open relay: only authenticated users and your own applications may send.
  • Require TLS and authentication on the submission port.
  • Keep rate limits on so a hacked account cannot send thousands of messages.
  • Watch the log and queue; we do not monitor your server.

Performance

  • Set the hostname and reverse DNS to match before sending.
  • Warm up a new IP slowly; large first sends get filtered.
  • Keep the queue short: bounce or fix stuck messages quickly.
  • Keep free disk space for the queue and mailboxes.
Postfix VPS FAQs

Questions Before You Deploy

Not covered here? Ask an engineer before you order.

Run Your Own SMTP Server

Choose a plan and we hand over Postfix, hardened and ready for your domain and DNS records.

Deploy Your VPS Talk to an Engineer