Every employee saves
60–90 minutes a day
Industry data: office workers spend about 2.5 hours a day on email. After rollout, most users save over an hour a day, up to 1.5 working days in a busy week.
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AI UMail Assistant
Hong Kong's AI email assistant. Reclaim the 2.5 hours a day you lose to email.
Draft, reply, translate and switch tone in one place. Tuned for local business etiquette, with no Microsoft 365 or Google Workspace lock-in.
EN
中EN
SUBJ
Formal
Friendly
Firm
Apology
Continue
→
What is AI UMail Assistant?
An AI email assistant built by UD's Hong Kong team. Inside Webmail, Outlook or any mail client, one click lets the AI draft, reply, translate, adjust tone and continue, producing written Chinese, English and other versions that fit the local business context.
For Hong Kong businesses, the question isn't simply "which tool is best." Two practical realities get in the way: generic overseas models struggle with local business etiquette and tone, and not every company wants to migrate to Microsoft 365 or Google Workspace just to adopt AI.
UD solves both at once: local-context tuning + cross-mail deployment + Hong Kong data residency
One click, no training
Webmail · Outlook · any mail client
UUMail
Draft↵
Reply
Summarise
Translate
Tone
01
Open mail
→
02
Click UMail
→
03
Use it
AI delivers real,
measurable returns.
Save time, lift quality, control cost: each against a measurable industry benchmark.
Every employee saves
Consistent outgoing mail,
company voice from day one
4 TONES · 1 CLICK
Formal
Friendly
Firm
Apology
Preset tone templates (Formal / Friendly / Firm / Apology) plus your company's salutations and signature mean a brand-new hire writes on-brand email on their first day.
Closer to an
HK SME budget
Microsoft 365 CopilotUSD 66–87
Google Gemini EnterpriseUSD 48–60
AI UMail AssistantLocal setup
Copilot incl. M365 subscription · Gemini incl. Workspace subscription · as of Jun 2026
Overseas options run USD 48–87 per user / month and require an M365 / Workspace subscription. UMail is priced by user count and feature mix, with no company-wide upgrade required.
Ready to estimate your own return?
Get a tailored quote, scoped by team and usage
Core capabilities
that handle most email scenarios.
01
Write in local business Chinese
From opening salutation to closing signature, everything follows Hong Kong business-email convention, no line-by-line rewording afterwards.
- Gets honorifics like “敝公司 / 貴司” exactly right
- Templates ready: quote follow-ups, meeting invites, apologies, proposals
- Side-by-side Chinese–English in the same message
SUBJECT · Quote follow-up
Formal · Written
敝公司已就 貴司七月之需求準備修訂報價，
煩請於下週前回覆，以便編配資源；
如有疑問敬請賜覆，謹此感謝。
煩請於下週前回覆，以便編配資源；
如有疑問敬請賜覆，謹此感謝。
, auto-applied honorifics· signature synced
02
Smart replies and long-email summaries
Got a long incoming email? One click gives you the key points plus a suggested reply. The AI reads the sender's tone and offers 2–3 reply stances (agree / reserved / decline): pick one, tweak it and send.
INBOX · long email
Agree
Reserved
Decline
03
Multilingual translation
Two-way translation across Chinese, English, Japanese, Korean and major Southeast Asian languages. Condense a long English email into Chinese key points, or generate two language versions of the same message at once.
中
EN
中
日
EN
中
中
한
中
VI
04
Tone switching and unlimited continuation
Switch between formal, friendly, firm and diplomatic in one click. Stuck halfway? Hit "Continue" and the AI picks up where you left off, matching your logic and tone.
Friendly· Formal ·Firm
Continuepicks up your logic
05
Company dictionary and house style
Upload your product names, technical terms and preferred ways to address clients, and the AI applies them automatically. No more mistranslated brand names or wrong client titles. Each department can have its own dictionary.
DeptTermCategoryRule
SalesUD AI SuiteProduct nameKeep as-is
LegalParty A / Party BSalutationPer contract
TechWebmail / OutlookTech termDon't translate
Which teams see
results fastest
Sales
Customer service
Admin / EA
Marketing
HR
Management
Sales chases overseas enquiries and quotes in real time. Customer service handles complaints and FAQs. Admin and EAs draft notices, invites and minutes. Marketing writes EDMs and partner outreach. HR drafts offer and warning letters. Management summarises long threads before giving direction.
If you write or reply to ten-plus emails a day,
UMail Assistant already returns real hours to your week.
UMail Assistant already returns real hours to your week.
Why UD?
- 01
Fluent in AI, fluent in Hong Kong
tuned by a local teamGeneric AI writes fluent English, but misses the distinctly Hong Kong balance of courtesy and confidence. Local honorifics read as professional when right and abrupt when wrong. UD's Hong Kong team continuously tunes the prompts and dictionary to reflect how local businesses actually communicate.
- 02
No M365 / Workspace lock-in
cross-mail deploymentNo need to migrate your whole company to Microsoft 365 or Google Workspace. UMail is built to deploy across mail servers, so your existing Webmail, desktop Outlook or self-hosted company mail all work.
- 03
Data governance aligned to PDPO
PCPD frameworkData is processed and stored in Hong Kong data centres by default, with permission tiers based on the PCPD's 2024 AI personal-data model framework. UD never uses your email content for model training, and enterprises can sign a separate Data Processing Agreement (DPA).
- 04
Local team support
local · same zoneFrom consultation and deployment to training and ongoing tuning, UD's Hong Kong engineering and advisory team stays with you, in the same time zone and the same language.
Get in touch,
we'll reply fast.
Leave your details and a UD consultant will get back to you within one working day with initial advice and a quote.
- Free initial advice and quote
- Follow-up in English or Cantonese
Frequently asked questions
How is AI UMail Assistant different from Microsoft Copilot or Google Gemini?
Three things. First, UMail is tuned for Hong Kong written Chinese and local business context, so the etiquette lands right. Second, it needs no M365 or Workspace subscription: your existing Webmail, Outlook or company mail server works. Third, your data is processed and stored in Hong Kong data centres by default and managed under the local PDPO framework.
We don't use Microsoft 365 / Google Workspace, can we still use it?
Yes. UMail is built for cross-mail-server deployment: common Webmail, desktop Outlook and self-hosted company mail all integrate, so you don't have to upgrade your whole office suite just to add AI.
Will the emails staff type be used to train the AI?
No. UD never uses your email content for model training. If needed, you can sign a separate Data Processing Agreement (DPA) setting out data use, retention and deletion.
Does it support Hong Kong written Chinese?
Yes. UMail follows Hong Kong written-Chinese convention (e.g. “敝公司”, “貴司”, “煩請”, “敬請賜覆”) and recognises local industry terms. If staff draft in colloquial style, the AI can convert it to a written-tone version.
Which languages can it translate between?
Chinese, English, Japanese, Korean and major Southeast Asian languages, with two-way translation, and it can produce two language versions of the same email at once.
Who can see sensitive data such as client details or contract terms?
It's processed within a dedicated enterprise environment with permission tiers under the PDPO framework. We recommend de-identifying before upload; UD consultants help set usage guidelines during onboarding.
How long does deployment take?
SMEs complete needs assessment, dictionary setup, plugin deployment and initial training within a week. Larger enterprises depend on user count and integration scope; UD gives a clear timeline after the first conversation.
How is pricing calculated?
By user count and feature mix. Submit the form on this page and a UD consultant will reach out within one working day with a written quote.