Postmaster Email Server | Postmaster Email Server
About Postmaster Email Server

India's Most Trusted LAN Email Server — Since 1995

A product of QLC Software Pvt. Ltd., marketed and supported in Eastern India by EbizIndia Consulting Pvt. Ltd. Three decades. 7,500+ organisations. One mission: professional corporate email for every desk.

1995 Founded
7,500+ Organisations
10,000+ Installations
29+ Years in Service
The Product

What Is Postmaster Email Server?


Postmaster Email Server is a LAN-based corporate email solution that gives every employee in an organisation their own professional email ID — without requiring individual internet connections at each workstation. Install it on a single computer on your Local Area Network, and the entire office is connected within minutes.

Developed in India for Indian business conditions, Postmaster has been the go-to email infrastructure for SMEs, government bodies, hospitals, educational institutions, and large enterprises since 1995. It works seamlessly with familiar email clients — Microsoft Outlook, Thunderbird, Outlook Express — so there is no retraining required.

  • Individual email IDs for every user on the LAN
  • Works over a single shared internet connection
  • Built-in anti-spam (Bayesian filtering) & anti-virus gateway
  • Full email archiving & compliance audit trails
  • Multiple domain support from one installation
  • LDAP-based shared company address book
  • Scales from 5 to 1,000+ users without added hardware
At a Glance

Postmaster Email Server

India's best-selling LAN email server software. Trusted by organisations across manufacturing, government, healthcare, finance, and education.

1995 Year launched
7,500+ Organisations
10K+ Active installs
24 / 7 Email delivery

Developed by: QLC Software Pvt. Ltd.
Marketed in Eastern India by: EbizIndia Consulting Pvt. Ltd.

The Developer

QLC Software Pvt. Ltd. — The Technology Behind Postmaster


Postmaster Email Server is a product of QLC Software Pvt. Ltd., one of India's pioneering software companies in the LAN communications space. QLC has been building enterprise communication tools for the Indian market since the mid-1990s, when internet connectivity was expensive, unreliable, and available only at centralised points in an office.

The engineers at QLC understood a fundamental problem facing Indian businesses: every executive needed a professional email identity, but infrastructure costs made per-user connectivity impractical. Postmaster was the answer — a single-node installation that democratised corporate email across the entire LAN, regardless of how many users were connected.

Over three decades, QLC has continuously evolved the Postmaster product line — from Postmaster Express for small offices to Postmaster Enterprise for large organisations, and the IQuinox Suite which adds anti-virus gateway (AvAc), internet access control (SurfConsole), and a purpose-built BFSI-compliant email platform for banks and NBFCs.

About the IQuinox Suite: Beyond email, QLC's complete IQuinox platform gives organisations unified control over email infrastructure, anti-virus protection, and regulated web access — all from a single management interface, purpose-built for Indian business conditions.

QLC Software — Quick Facts

Entity QLC Software Pvt. Ltd.
Role Developer & IP owner of Postmaster Email Server
Since Mid-1990s
Products Postmaster Express, Postmaster Enterprise, AvAc Anti-Virus, SurfConsole, IQuinox Platform, BFSI Email Solution
Market Pan-India; BFSI, manufacturing, government, healthcare, education
Eastern India Marketed & supported by EbizIndia Consulting Pvt. Ltd., Kolkata
Three Decades of Reliability

A Journey Built on Trust


From the dial-up era to always-on broadband, Postmaster has evolved continuously while remaining the most dependable LAN email solution for Indian organisations.

1995

Postmaster Email Server Launched

QLC launches Postmaster, solving the corporate email problem for Indian businesses constrained by expensive, single-point internet access.

Late 1990s

Rapid Adoption Across Indian Industry

Adoption accelerates as Indian SMEs, government bodies, and large enterprises recognise Postmaster as the cost-effective standard for LAN email.

2000s

Enterprise Edition & IQuinox Suite

QLC expands the product family — Postmaster Enterprise, AvAc anti-virus gateway, and SurfConsole internet access control — into a unified IQuinox platform.

2007

EbizIndia Becomes Eastern India Partner

EbizIndia Consulting Pvt. Ltd. begins marketing and supporting Postmaster across Eastern India, bringing dedicated local expertise to the region.

2010s

BFSI Compliance Solution

A purpose-built RBI-ready email archiving and compliance platform — SecureMail for BFSI — is introduced for banks, NBFCs, and financial institutions.

2024–25

7,500+ Organisations & Growing

With over 10,000 active installations and a dedicated 100% India-based support team, Postmaster remains India's #1 LAN email server software.

Eastern India Partner

About EbizIndia Consulting Pvt. Ltd.


EbizIndia Consulting Pvt. Ltd.
Established 2007 · Kolkata, West Bengal
Software Development Digital Marketing SEO & AEO CRO Audits SaaS Products Website Redesign

EbizIndia Consulting Pvt. Ltd. is the authorised marketing and support partner for Postmaster Email Server in Eastern India. Based in Salt Lake Sector V, Kolkata — the heart of the city's technology district — EbizIndia brings domain expertise in enterprise software and digital services to every Postmaster engagement.

EbizIndia has been a trusted technology partner for businesses across India, the UK, and the USA since 2007. The company is active in leading industry bodies including NASSCOM, TiE, COMPASS, and NRAI, and maintains a strong network across Eastern India's corporate, manufacturing, and institutional sectors.

When you enquire about Postmaster in Eastern India, you deal directly with the EbizIndia team — no middlemen, no call centres. Pre-sales guidance, installation support, user training, and ongoing AMC coverage are all handled locally, with a guaranteed 1-business-day response time.

Software Development

Custom SaaS, CRMs, workflow automation, and web applications for SMEs.

SEO & Digital Marketing

Search optimisation, AEO, Google Ads, and content strategy for growth.

CRO & Accessibility Audits

Conversion rate optimisation and WCAG 2.2 AA compliance audits.

Security Audits

Black-box external security audits and remediation for web properties.

The Person Behind the Partnership

Arun Agrawal — Founder & CEO, EbizIndia


Arun Agrawal is a gold-medallist computer engineer, entrepreneur, and one of Eastern India's most respected names in technology consulting. As the Founder and CEO of EbizIndia Consulting Pvt. Ltd., Arun leads the marketing and support of Postmaster Email Server across Eastern India, bringing with him nearly two decades of hands-on experience in enterprise software, digital marketing, SEO, and CRO.

A regular speaker at technology conferences, Arun is actively involved in industry bodies including NASSCOM, TiE Kolkata, COMPASS, and NRAI. His clients range from domestic SMEs to businesses in the UK and the USA, and he has built a reputation for being deeply invested in client outcomes — not just deliverables.

On the Postmaster side, Arun personally handles pre-sales consultations for Eastern India clients, ensuring that every organisation is guided to the right edition for their size, sector, and compliance requirements. Post-installation, his team provides ongoing AMC-backed support with a single point of contact and rapid response times.

"Arun is one of the pioneers of the e-marketing arena in India. He is a delight to work as a business partner and a business vendor. His internet marketing and SEO knowledge is better than any of the professionals I have come across." — LinkedIn recommendation from a long-standing client partner
Arun Agrawal
Founder & CEO · EbizIndia Consulting Pvt. Ltd.
Gold-Medallist Engineer NASSCOM TiE Kolkata COMPASS NRAI SEO / CRO Expert SaaS Founder

Ready to Give Every Executive Their Own Email?

Talk to Arun and the EbizIndia team today. We'll recommend the right Postmaster edition for your organisation's size and budget — no obligation.

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