The short version: you can run basic email marketing from a plain Gmail account, but you’re capped at 500 recipients a day (2,000 if you’re on Google Workspace), you get no proper open or click tracking, and Google will suspend accounts that behave like a mailing list. It works well for a list under a few hundred people. Past that, it becomes a liability dressed up as a free option.
What people mean when they ask this
Usually one of two things. Either “can I send a newsletter to my subscribers without paying for Mailchimp or ConvertKit,” or “can I run a cold outreach campaign to prospects without buying a tool.” The honest answer is different for each, so let’s separate them.
For a small newsletter to people who’ve opted in, yes, Gmail can carry you further than you’d think. For cold outreach to a bought or scraped list, Gmail will get your account flagged inside a week, sometimes a day. Google’s spam filters are trained to spot exactly that pattern, one sender, dozens of near-identical messages, low reply rate, and they don’t care whether you meant well.
If you’re starting from nothing and wondering whether you even need a list first, I’ve covered whether you need an existing email list to start a newsletter in more detail, and the short answer there matters here too: you can start with almost nobody and grow it, which is exactly the situation where Gmail is enough.
The numbers nobody mentions until you hit them
Here’s what happens. A free Gmail account can send to 500 unique recipients in a rolling 24 hour period. A Google Workspace account (the paid business version, £5 to £14 a month depending on plan) gets 2,000. That sounds generous until you realise BCC counts every name individually. Put 400 people on BCC and send once, and you’ve used 400 of your 500 for the whole day, on one email.
I found this out the hard way running a nurture sequence for a small client of mine, a local training company with 340 people on their list. We used a Google Sheets mail merge script (free, built with Google Apps Script) to personalise and send one at a time instead of BCCing the lot. It worked, technically, sending 340 individual emails over about 25 minutes. But two days later Gmail started throwing “unusual sending activity” warnings, and by day four the account was temporarily locked for 24 hours while Google reviewed it. No warning email first. Just locked, mid campaign, with a half sent sequence sitting in drafts and a client asking why nobody had received Tuesday’s email.
That’s the bit most guides on this topic leave out. It’s not just a daily cap, it’s a pattern detector. Send the same message to a batch of people with no prior conversation history, at a similar time each day, from a personal Gmail address, and the algorithm treats it as list behaviour regardless of your actual numbers. I’ve since spread the same volume of sends across the working day in smaller batches of 40 to 60, and it hasn’t happened again, but there’s no official guidance from Google confirming that’s the fix, it’s just what worked for me.
How to set it up, step by step
If your list is small and warm (people who know you, clients, event attendees, past customers), here’s the realistic setup:
- Use a Google Workspace account rather than a free @gmail.com one. The 2,000 daily limit gives you room, and Workspace addresses ([email protected]) don’t get treated with the same suspicion as personal Gmail addresses sending in bulk.
- Build your list in a Google Sheet with columns for name, email, and any personalisation fields (company, last purchase, event they attended).
- Use a free mail merge Apps Script, Google’s own documentation has a template, or a lightweight add-on like Mailmeteor or GMass on the free tier. These send individually rather than via BCC, which matters for both deliverability and the fact that BCC recipients can technically see each other’s addresses if you get it wrong.
- Write the email so it reads like it’s from a person, because it is. First name, a real sign off, and a genuine unsubscribe line (“reply STOP and I’ll take you off this list”). This isn’t just good manners, GDPR requires an opt out mechanism if you’re emailing anyone in the UK or EU, and Gmail’s own bulk sender rules (updated for anyone sending over 5,000 emails a day in 2024) now require one-click unsubscribe as standard practice across the industry, even below that threshold it’s the expectation.
- Send in batches of 40 to 80 at a time, spaced out over the day rather than one blast, and track opens manually by asking people to reply, because Gmail gives you no open rate data at all. None. That’s the trade off nobody wants to say out loud: free costs you the numbers you need to know if it’s working.
If you want to get faster at writing the actual emails rather than the sending mechanics, that’s a separate problem worth solving, and I’ve written about how an AI email writer can save real time on client replies, the same principle applies to newsletter drafting, get the first draft out fast and spend your time on the edit.
Where Gmail falls over
I ran a fully automated cold email sequence through a Gmail-adjacent setup as one of my public experiments, and it was, by any measure, a mess. I wrote it up honestly because I think most people selling “automation” hide the failures, and you can read the full breakdown in Week 17 Flop, my hands free AI cold email automation was an epic failure. The short version: automation plus a personal Gmail address plus cold recipients is close to the worst combination possible, because you get all of Gmail’s sending limits and pattern flags with none of the deliverability protections that a proper cold outreach tool builds in, like warm-up sequences and dedicated sending domains.
Beyond deliverability, here’s the bit that costs businesses money: Gmail gives you no segmentation. You can’t send to “people who bought in the last 30 days but haven’t opened the last two emails.” You can’t A/B test a subject line. You can’t see who clicked what. If your list is 40 people and your business runs on relationships anyway, none of that matters. If your list is 3,000 and you’re trying to grow revenue from it, you are flying with the instruments switched off, and you won’t know your open rate is 11% instead of the 25% industry average until a client asks and you have nothing to show them.
There’s also a compliance risk that gets glossed over. If you’re sending marketing emails, not personal correspondence, to a list of any real size, you need a genuine unsubscribe mechanism, a physical address in the footer (a legal requirement under both UK PECR rules and US CAN-SPAM), and a record of consent. Gmail doesn’t track any of that for you. If someone complains, you’ve got nothing to show a regulator except your own sent folder.
When Gmail is the right call
I want to be fair here because plenty of advice on this topic swings straight to “just buy the software,” which isn’t right either. Gmail is the correct choice when:
- Your list is under 200 to 300 warm contacts and growing slowly.
- You’re testing an offer or a newsletter concept before committing to a paid tool, sometimes for a few months while you find your voice and your open rate baseline.
- The relationship matters more than the metrics, a solo consultant checking in with 60 past clients twice a quarter doesn’t need Klaviyo.
- You can’t justify £15 to £30 a month yet because the business isn’t making money from email at all.
I’d also say this: while you’re on Gmail, it’s worth getting efficient inside it rather than bolting on extensions you’ll forget to update. I put together a full guide on how to improve productivity in Gmail without installing a single extra app, and templates plus scheduled send plus label automation will get you further than most people expect from the free tools already sitting in your account.
The point where you need to switch
The switch point isn’t a magic number, but in my experience it’s somewhere around 300 to 500 engaged contacts, or the moment you want to send more than roughly twice a week, or the first time you need to know your open rate rather than guess it. At that point the maths flips: a starter plan on Mailerlite or Brevo runs £0 to £15 a month for a few thousand contacts, comes with unsubscribe handling built in, gives you real analytics, and won’t lock your account for 24 hours mid-campaign because Google’s algorithm got twitchy.
If you’re already on a paid platform and thinking about moving, the switching process itself is where most people lose data or double email people during the handover, so it’s worth reading through how to choose between email marketing platforms when you’re switching providers before you touch anything, because the export and re-permission process matters more than which logo you end up with.
My own rule of thumb after years of testing this both ways: Gmail is a brilliant place to start and a bad place to stay. Start there for free, prove the idea works, and move the moment the list, the frequency, or the stakes outgrow what a personal inbox was ever built to do.
Frequently asked questions
How many emails can you send from Gmail before it’s considered spam?
A free Gmail account allows 500 unique recipients in a rolling 24 hour period, and Google Workspace allows 2,000, but sending patterns matter as much as the raw number. Identical messages sent in one large batch to people you haven’t emailed before can trigger a temporary account lock well before you hit the cap.
Is BCC a good way to send a newsletter through Gmail?
No. BCC counts every recipient against your daily sending limit, gives you zero tracking, and looks like list behaviour to Google’s spam filters. An individual mail merge, sent one email at a time using a free tool like a Google Sheets Apps Script or an add-on like Mailmeteor, works better and looks far less suspicious.
Can you get in legal trouble sending marketing emails from Gmail?
Yes, the same rules apply regardless of which platform you use. UK and EU senders need a working unsubscribe option and a clear basis for consent under GDPR and PECR, and US senders need to follow CAN-SPAM, which requires a physical address and an opt out mechanism. Gmail doesn’t manage any of this automatically, so it’s on you to add it manually to every email.
At what list size should I move off Gmail to a proper email platform?
Somewhere between 300 and 500 engaged contacts is a realistic point to switch, or sooner if you want to send more than twice a week or need to see open and click data to prove your emails are working. Below that, Gmail with a disciplined manual process is fine.
Primary sources
There is a full walkthrough of contribute a guest article on email marketing.
