Email is still the backbone of most Australian small business communication. It’s also one of the biggest time sinks. AI tools built into Gmail and Outlook can cut the time you spend on email by 30–50%: without changing how you work. Here’s what’s available and how to actually use it.

AI in Gmail

Google has built AI features directly into Gmail through its Gemini integration, available on Google Workspace Business plans:

Smart Compose: suggests completions as you type. Free on all Gmail accounts. Saves micro-seconds per sentence but adds up across dozens of emails a day.
Help me write: describe what you want to say, and Gemini drafts the full email. Available on Workspace plans. Works best for formal emails: client proposals, complaint responses, follow-ups.
Summarise this email: for long email threads, Gemini produces a one-paragraph summary. Useful when you’ve been CC’d into a 40-message thread and need to catch up fast.
Smart Reply: suggests short responses to emails. Free on all accounts. Good for quick acknowledgements, but limited for anything requiring nuance.

For Australian businesses on Google Workspace Business Starter (AU$9.60/user/month), Gemini features are included. The upgrade from free Gmail is worth it if email is a significant part of your day.

AI in Outlook / Microsoft 365

Microsoft’s AI email features come through Copilot, available on Microsoft 365 Business plans:

Draft with Copilot: describe the email and Copilot writes it. You can specify tone (formal, casual, direct) and length. Noticeably better than Gmail’s “Help me write” for complex business emails.
Coaching by Copilot. Copilot reads your draft and suggests improvements to tone, clarity, and conciseness. Useful for client-facing emails where the tone matters.
Thread summarisation: summarises long email threads, highlights action items, and identifies who owes what. Genuinely saves time when managing complex client projects.
Meeting prep: before a meeting, Copilot summarises recent emails and calendar events related to the attendees, so you walk in briefed.

Using ChatGPT with your email (no paid plan needed)

If you’re not on a paid Workspace or Microsoft 365 plan, ChatGPT handles most email AI tasks for free:

Paste a received email and ask “draft a professional reply declining this request politely”
“Write a follow-up email to a client who hasn’t paid a 30-day invoice: firm but not aggressive”
“Summarise this email thread and list the outstanding action items”
“Rewrite this email to be shorter and more direct”

This approach requires copy-pasting, which adds friction. But for businesses that don’t email constantly, it’s the most cost-effective option.

Best practices for AI email

AI drafts need reviewing before sending. Common issues: overly formal tone, wrong level of detail, missing context that only you know. Treat AI drafts as starting points: edit them to sound like you. A client who’s worked with you for years will notice if your emails suddenly sound like a corporate press release.

Also: don’t paste confidential client information into general AI tools like ChatGPT. Stick to the built-in Workspace or Microsoft 365 tools when handling sensitive data: those operate under enterprise data agreements.

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