AI can turn a blunt complaint or awkward reply into a useful draft. Here’s how to get the wording right, protect private information and avoid sounding like a machine.
You know what you want to say. The trouble is making an email sound firm without sounding furious, or friendly without spending half an hour rearranging three sentences.
That is a sensible job for AI. Give it the facts and ask for a draft; then treat the result as you would a colleague’s first attempt. Read it, cut it and make sure it still says what you mean.
Yes, provided you give it more than “write a polite email”. An AI writing tool takes your instructions — usually called a prompt — and predicts a plausible piece of text. It does not know which details matter to you unless you tell it. Left to its own devices, it tends towards the sort of cheerfully empty prose that could have been approved by a committee in a hotel conference room.
Start with four things: who the email is for, what happened, what you want next and how you want to sound. For example: “Draft a short email to a tradesperson. The agreed work is unfinished. Ask when they can return to complete it. Be courteous but direct. Do not invent a date or imply I have agreed to extra charges.” You can leave out names and other identifying details while drafting.
Notice what that instruction does not ask for: a legal threat, an account of your feelings or an essay on customer service. AI is often most useful as a restraint on the message you were about to write in a temper. It can turn “Where on earth have you got to?” into a clear request for an update without surrendering the point.
It is useful for the reverse problem, too: saying no. Try: “Decline an invitation to join a voluntary committee. Thank them, say I cannot take on another commitment, and do not suggest I might join later.” That last instruction matters. Otherwise, the draft may leave a hopeful little door open that you will have to close in another email.
Use AI to find the words, not to decide what you mean.
For a reply to a complicated message, write your own bullet points first. Ask the tool to turn those points into two short paragraphs, not to work out your position for you. If its draft promises a refund, accepts a deadline or apologises for something you have not done, delete that sentence. Plausible wording is not the same thing as an agreed fact.
You do not need to buy a new email service to try this. A general-purpose AI chat tool such as ChatGPT can draft text that you copy into your usual email app. That is the least complicated way to see whether the habit helps: describe a low-stakes message without pasting in the original email or anyone’s private details, and edit the result yourself. ChatGPT has a free option, so there is little reason to start by paying for a subscription just to polish the occasional reply.
If you already pay for Microsoft 365 Personal, Copilot is built into Outlook and can draft an email there. Microsoft lists Personal at £84.99 a year or £8.49 a month on its UK store; those are the listed prices in October 2026, not a reason to subscribe unless you want the other Microsoft 365 features as well. Microsoft’s Outlook instructions say you can adjust a draft’s tone or length before you keep and edit it. Access depends on your account, app and settings, so check what appears in your own Outlook rather than assuming every Copilot button does the same thing.
Gmail needs a particularly careful look at availability. Google’s Help me write feature can draft or refine messages for eligible Google AI or Workspace plans, but Google says access through an ordinary personal Google Account without an eligible plan is restricted to the US. In other words, a screenshot of a clever Gmail button does not prove it is free on your UK account. Check your plan and the feature in your own compose window before paying for anything.
The practical verdict: if you write difficult emails only now and then, try a free chat tool and paste the finished draft yourself. If you already live in Outlook or pay for an eligible Google plan, an integrated tool may save a few steps. Do not pay a monthly fee merely to avoid typing “Just following up” once a fortnight.
Anything you would hesitate to hand to an unrelated company: someone else’s medical details, a customer list, passwords, bank information or an entire confidential work thread. Replace names with roles and remove account numbers. “A customer has queried an invoice” is usually enough context to draft a calm holding reply; the customer’s full record is not.
This is not just a matter of being cautious. The UK General Data Protection Regulation (UK GDPR) and Data Protection Act 2018 govern how organisations handle personal data across England, Scotland, Wales and Northern Ireland; there is no separate email-AI rule for each nation. The ICO has addressed the specific example of an organisation using generative AI to draft email replies: sharing personal data with an AI provider requires a proper basis and attention to data-sharing rules, while particularly sensitive information can require additional safeguards. If this is work email, use the tools your employer has approved. Your personal chatbot account is not a convenient alternative to the company’s policy.
On a personal ChatGPT account, you can turn off Improve the model for everyone in Data controls, so new conversations are not used to train OpenAI’s models. That setting does not make an ordinary saved chat disappear. Temporary Chat stays out of chat history and is not used for model improvement while it remains temporary, although OpenAI says it may retain a copy for safety purposes for up to 30 days. Those controls are worth knowing about; omitting sensitive details is still the better first move.
Nor should AI be asked to decide whether an unexpected email from HMRC, the NHS or your bank is genuine simply because its wording looks convincing. Do not follow links in a suspicious message. The National Cyber Security Centre says you can forward a suspect email to report@phishing.gov.uk. If you need to contact an organisation, find its details independently rather than replying to the message.
Before sending, check the recipient, names, figures, dates, attachments and every promise the draft makes. Then read it aloud. Remove any sentence you would never say, particularly the opening pleasantries that make a simple reminder sound like a speech at a retirement dinner.
For a complaint, keep the useful spine: what happened, what outcome you want and when you would like a response. For a delicate personal email, check whether a call would be kinder. AI can help you get past the blank page; it cannot hear the history between you and the person receiving it.
That makes it a decent editor and a poor delegate. The best AI-assisted email is one you would be comfortable defending as entirely your own — because, once you press Send, it is.
Yes, AI can write a useful email draft if you give it the facts, the desired outcome and a clear tone. Try a free tool before paying for an integrated one, keep private information out of prompts and check every claim and commitment yourself. Let it save you time at the keyboard, not take responsibility for what you send.
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