What Graser does

The company operates the hiBox全能信箱 (hiBox All-in-One Mailbox) unified business messaging platform, served from graser.com.tw on infrastructure owned by Chunghwa Telecom Co., Ltd. (TWSE: 2412), Taiwan's largest telecom operator. hiBox integrates email and virtual fax into a single mailbox product, with two core tiers — a Mail-type Mailbox (70–1,080 NTD/month) and a Fax-type Mailbox (200–1,680 NTD/month) that adds a dedicated virtual DID in Taiwan area codes 02/03/04/06/07 — supplemented by add-on modules for cloud email backup (600 NTD/month per 10GB), mail audit/DLP (50 NTD/month per account), and SMS OTP two-factor authentication (made free from March 2023). The platform is built on standard email protocols (POP3/IMAP/SMTP with SSL/TLS 1.2+), layered with Cisco Ironport and Symantec Brightmail for spam/virus filtering (claimed <1ppm false positive rate), DKIM signing (added September 2020), and a dedicated cross-strait VPN express highway between Taipei, Shanghai (established 2009) and Guangzhou (2011) data centers, with a fourth US site added in 2019.

Revenue is generated almost entirely through recurring mailbox subscriptions (with a 20% discount for annual billing), one-time domain and fax-number setup fees (500 NTD), and usage-based add-ons (fax transmission at 2 NTD/page, SMS at 1 NTD/message), all billed through Chunghwa Telecom's telecommunications billing system. Distribution is exclusively through Chunghwa Telecom's enterprise field sales, 24/7 toll-free customer service hotline (0800-080-365), and a self-service online portal at hibox.hinet.net. The customer base skews toward Taiwanese small and mid-market enterprises — particularly those with operations in mainland China — across diversified verticals: hospitality (涵碧樓), apparel manufacturing (德式馬企業, a ZARA/GAP supplier that reduced annual shipping waste from USD 2M to USD 200K after adoption), POS systems (振樺電子), medical equipment (三豐醫療器材), food & beverage (福利麵包), freight/logistics (景馥通運), and IT services (天珅科技). A note worth flagging: the firmographic record describes the firm as a 1994-founded, 11–50-employee electronic design automation business in Taipei, which is inconsistent with the hiBox email/fax service the operational evidence describes; this discrepancy is unresolved in the supplied data.

Name

Graser

Legal name

中華電信股份有限公司 (Chunghwa Telecom Co., Ltd.)

Website

https://graser.com.tw

Company type

Public

Founded year

2003

Operating status

Operating

Headcount range

11–50 employees

Short description

Graser operates the hiBox All-in-One Mailbox service for Chunghwa Telecom, a unified email-plus-virtual-fax platform serving Taiwanese and cross-strait (Taiwan-China) small and mid-market enterprises, distributed via telecom sales channels and cloud-billed subscriptions.

Ownership category

akta.pro rank

Product category

Enterprise Email & Messaging Services

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computer Systems Design and Related Services (54151), Wired Telecommunications Carriers (517111)

SIC

Telegraph & Other Message Communications (4822), Services-Computer Integrated Systems Design (7373), Telephone Communications (No Radiotelephone) (4813)

akta.pro primary industry

Email Authentication & Domain Protection (DMARC/SPF/DKIM) (HDADAKAC)

akta.pro secondary industries

Email Phishing & BEC Protection (HDADAKAB), Governance, Risk & Compliance (GRC) Managed Services (BPAEADAJ), Email Security Gateways (SEG) Appliances (HDAFAFAF)

Keywords

• Enterprise email hosting
• Virtual fax services
• Cloud mail backup
• Business messaging platform
• Email security solutions

Headquarters

HQ city

Taipei

HQ country

Taiwan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Infrastructure, Personnel, Operations, Marketing or Sales

Revenue model

1. Mailbox Subscription Services: Monthly or annual subscription fees charged per mailbox account based on storage capacity. Two mailbox types available: 郵件型信箱 (email-only) and 傳真型信箱 (email + virtual fax). Billed through Chunghwa Telecom telecommunications billing.
2. Domain Registration Setup: One-time setup fee of 500 NTD per domain for custom domain names. Waived for customers with 10+ monthly accounts or 5+ annual accounts.
3. Value-Added Services: Additional revenue from email audit service (50 NTD/month per account), cloud backup service (600 NTD/month for 10GB), instant backup mailbox (400 NTD/month for 500MB), fax transmission (2 NTD/page domestic), and SMS OTP (1 NTD/message)
4. Fax Number Selection Fee: One-time fee of 500 NTD per DID number for custom virtual fax number selection

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Graser (graser.com.tw) operates the web platform that delivers the hiBox All-in-One Mailbox service — a cloud-based unified business communication platform that integrates email and fax into a single messaging service. Customers subscribe per mailbox (mail-type or fax-type) and access the service via webmail, Outlook, and mobile apps, with optional add-ons for cloud backup, email audit, and SMS OTP authentication. The service is hosted on Chunghwa Telecom's multi-region telecom infrastructure (Taiwan, Shanghai, Guangzhou, USA) with a dedicated cross-strait VPN for reliable Taiwan–China email delivery.

Product overview

hiBox全能信箱 is a unified business communication platform provided by Chunghwa Telecom (中華電信). The core offering consists of two mailbox types: 郵件型信箱 (Mail-type Mailbox) for email with antivirus/spam protection, and 傳真型信箱 (Fax-type Mailbox) which adds virtual fax receiving capabilities. The platform is enhanced with value-added services including 雲端郵件備份服務 (Cloud Mail Backup) for enterprise knowledge management, 郵件稽核服務 (Mail Audit) for compliance and data loss prevention, and 簡訊OTP密碼鎖 (SMS OTP) for two-factor authentication. All services are hosted on Chunghwa Telecom's IDC infrastructure with data centers in Taiwan, Shanghai, Guangzhou, and the USA to serve cross-strait and international businesses.

Differentiator

Problem solved

Functional benefit

Products and services

• hiBox All-in-One Mailbox (hiBox全能信箱) Unified business communication platform that integrates email and fax into a single messaging service hosted on Chunghwa Telecom's telecom infrastructure. Customers access messages via webmail, Outlook, mobile apps, and SMS push-mail across computers, laptops, tablets, and smartphones, providing enterprises with real-time messaging, anti-spam/anti-virus, and cross-strait reliable delivery.
• Mail-type Mailbox (郵件型信箱) Email mailbox plan providing sending/receiving, antivirus protection, spam filtering, custom domain support and online fax sending. Accessible via Outlook/Outlook Express or webmail over SSL with enterprise domain name support. Sized by storage (1GB, 2GB, 4GB, 10GB, 40GB tiers).
• Fax-type Mailbox (傳真型信箱) Mailbox plan that includes all Mail-type Mailbox features plus a dedicated virtual fax number so the mailbox can also receive faxes as email attachments. Supports Taiwan area-code selection (02, 03, 04, 06, 07) for the assigned DID number; sized by storage (2GB, 4GB, 10GB, 40GB tiers).
• Mail Audit Service (郵件稽核服務) Standalone add-on service that prevents sensitive corporate or customer personal data from leaking via email. Administrators set audit rules and keywords to filter outgoing content, with customizable modules for personal data identification (Taiwan ID, credit card numbers, addresses) and automated actions such as PDF encryption, rejection, or supervisor review. Priced at 50 NTD/account/month.
• Cloud Mail Backup Service — Professional (雲端郵件備份服務) Enterprise-grade cloud email archiving add-on that automatically backs up all incoming and outgoing emails within a domain to dedicated cloud storage. Includes admin interface, real-time full-text search, attachment search (including compressed files), and reporting/statistics. Base capacity 10GB at 600 NTD/month with 200 NTD/month per additional 5GB.
• Real-time Backup Service Mailbox — Standard (即時備份服務信箱) Entry-level email backup service mailbox for enterprises. Automatically backs up incoming and outgoing emails within the same domain with basic mailbox query. Base capacity 500MB at 400 NTD/month with 600 NTD for each additional 1GB.
• SMS OTP Password Lock Service (簡訊OTP密碼鎖服務) Two-factor authentication service for hiBox mailbox login that adds an SMS OTP verification step on top of account password and captcha. Designed to protect against account theft and hacking. SMS OTP notification fee: 1 NTD per message domestically; effective March 1, 2023 the monthly fee is waived as a free service.

Quantifiable outcome

• 95%+ spam blocking rate, reducing employee time spent on spam from 5-10 minutes/day to near zero
• +3 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Two partnerships are on record, tiered core.

• Cisco (Ironport)coreTechnology or IntegrationUses Cisco Ironport email security technology for Anti-Spam and Anti-Virus protection with real-time global threat intelligence updates
• Symantec (Brightmail)coreTechnology or IntegrationUses Symantec Brightmail for dual-layer spam and virus protection, achieving less than 1 in 1 million false positive rate

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Proofpoint: Enterprise email security vendor offering anti-spam, anti-phishing, DLP, and archiving. Competes with hiBox's Mail Audit and anti-spam modules for regulated and larger enterprise customers in APAC.
• Mimecast: Cloud email security, archiving, and continuity provider. Directly overlaps with hiBox's cloud backup, email audit, and anti-spam/anti-virus capabilities — and increasingly targets the same APAC mid-market.
• Openfind: Taiwan-based provider of Mail2000 enterprise email and MailGates mail security — the closest direct competitor to hiBox in the Taiwan mid-market, offering anti-spam, archiving, and email hosting with similar pricing models.

Emerging players

• Zimbra: Email and collaboration platform offering on-premise and cloud deployment. Competes in the same hosted enterprise email category as hiBox, particularly with telcos and service providers offering white-label email.
• IceWarp: Provider of email and team collaboration server software with on-premise and cloud deployment. Comparable to hiBox in offering unified messaging with email security, though typically serving different geographic regions.
• NetMail: Provider of enterprise email archiving, security, and compliance solutions. Directly comparable to hiBox's cloud backup and audit offerings, often deployed by service providers and enterprises for regulatory compliance.

Broad incumbents

• Google Workspace: Cloud email and collaboration platform (Gmail/Workspace) competing directly with hiBox on hosted business email, with strong cross-device access and built-in security features that overlap with hiBox's positioning.
• Microsoft 365 (Exchange Online): Global market leader in cloud-hosted business email (Exchange Online) bundled with productivity suite. Competes with hiBox across all customer segments and price tiers, particularly in Taiwan SMB and enterprise accounts where Microsoft licensing is already deployed.
• HCL Domino (formerly IBM Notes/Domino): Legacy enterprise email and collaboration platform still deployed in regulated industries and government. Competes for the same Taiwan/Asia enterprise email workloads that hiBox targets via Chunghwa Telecom.

Others

• Chunghwa Telecom (parent): Taiwan's largest telecom (TWSE: 2412) and the operating parent of hiBox. Provides sales, billing, customer service, and data center infrastructure that defines hiBox's go-to-market — not a competitor but the strategic anchor.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Graser