Email warmup forGoogle Workspace.

Nearly every warmup tool connects Gmail over OAuth, so the real question is what your mailbox warms against. For a Google Workspace account you want genuine Google accounts in the pool, not a mixed SMTP network. We have ranked the tools on that, and said where each one beats HotHawk.

HotHawk is cold email software for serious outbound teams.

Special offer

Get 50% more sending, FREE.

50% extra sending on any plan, every month for as long as you're with us.

#	Tool	Best for	From
1	HotHawk	Google warmup built into the sender, no per-inbox bill	$97/mo
2	MailReach	Strong standalone Google warmup plus a spam tester	~$25/inbox/mo
3	Warmy.io	Google warmup with deep deliverability diagnostics	Quote only
4	Warmup Inbox	The cheapest way to warm a couple of Gmail inboxes	$15/inbox/mo annual
5	Lemwarm	Existing Lemlist users warming Google mailboxes	$29/inbox/mo
6	TrulyInbox	Flat-priced warmup across many Gmail accounts	$22/mo (unlimited accounts)

First, the basics

Warming a Google mailbox the right way.

Warming Gmail is not hard, but a few things decide whether it actually helps. These four are worth getting right before you pick a tool.

One-click OAuth is the norm

Every tool here connects Google Workspace over OAuth, so setup is a couple of clicks rather than an app password. That is table stakes; the real question is what the warmup pool is made of.

Warm against real Google accounts

Gmail trusts engagement from other real Google inboxes more than from SMTP relays. Tools with genuine Google strength in the pool, like HotHawk, MailReach and Warmup Inbox, warm a Gmail mailbox with the right kind of traffic.

Sort your authentication first

Warmup cannot paper over broken records. Get SPF, DKIM and DMARC right on your sending domain before you start, or you are warming against a problem the pool will keep hitting.

Warm before you send, not during

Give a fresh Google mailbox a couple of weeks of warmup before it sends any real campaign volume. Going straight to cold outreach on a brand-new Gmail account is the fastest way to burn it.

The list

Google Workspace warmup tools, ranked.

HotHawk

from $97/moOur pick

Warmup against a pool of real Google inboxes, included in a full sending platform.

Where it wins. Google Workspace mailboxes connect in one click over OAuth, and the warmup pool is real Google and Microsoft inboxes only, so a Gmail mailbox is warming against genuine Google accounts rather than SMTP relays or consumer addresses. The AI holds business-relevant conversations, risky mailboxes get quarantined, and any that start bouncing are suspended on the spot. It is all included on every plan with no separate warmup charge, plus the Master Inbox to catch the replies.

The trade-off. The trade-off worth knowing: HotHawk sends as well as warms, so it replaces your sender rather than sitting beside it. If you are happy with where you send from and only want to warm those Google inboxes, a standalone tool is the smaller commitment. You also bring your own mailboxes and leads.

Start free trial

MailReach

from ~$25/inbox/mo

A standalone warmer on a network that is primarily real Google and Microsoft accounts.

Where it wins. Its network is largely real Google and Microsoft inboxes, which is exactly what you want when warming Gmail. Bulk-connecting Google Workspace takes about two minutes over OAuth, the warmup runs genuine multi-turn threads, and the bolt-on spam tester fires to 30-plus real seed inboxes for per-provider diagnostics.

Where it falls short. It is per inbox with no free trial of the warmer, so the cost climbs across many Gmail accounts and you pay before testing. It is warmup and testing only, with no sender, and spam-test credits run out and cost extra.

Visit website

Warmy.io

from Quote only

Standalone Google warmup paired with the deepest diagnostics here, including Google Postmaster.

Where it wins. Beyond warming Gmail over OAuth, it integrates Google Postmaster Tools for domain and IP reputation, and runs seed-list placement testing across Gmail and others. If you want to see how your Google reputation is actually trending, this is the most instrumented option, with AI-written warmup across 30-plus languages.

Where it falls short. There is no public price since Warmy pulled its pricing in 2026, so you book a demo, and per-inbox cost scales painfully past a handful of Gmail accounts. The pool deliberately mixes business and consumer inboxes rather than being Google business only.

Visit website

Warmup Inbox

from $15/inbox/mo annual

Low-cost standalone warmup with real Google traffic and a no-card trial.

Where it wins. Reviewers confirm the warmup traffic comes from real Google and Microsoft accounts, and at $15 an inbox a year it is the cheapest standalone entry here for warming one or two Gmail mailboxes. There is a 7-day trial with no card, and it also resells some managed Google Workspace inboxes as a side offering.

Where it falls short. Per-inbox pricing climbs quickly across more Gmail accounts, the network is smaller than some rivals, and the analytics are basic. The pool is mixed providers rather than Google only.

Visit website

Lemwarm

from $29/inbox/mo

Real-inbox warmup with one-click Google OAuth, free if you already pay for Lemlist.

Where it wins. Google Workspace connects in one click over OAuth, the warmup uses real inboxes with human-like threaded replies, and it is free inside any paid Lemlist plan. If you already send from Lemlist, warming your Gmail mailboxes is effectively built in.

Where it falls short. Standalone it is $29 to $49 an inbox, which is steep for warmup alone, and the 20,000-plus domain network mixes providers rather than being Google only. The entry plan caps at 40 warmup emails a day.

Visit website

TrulyInbox

from $22/mo (unlimited accounts)

Flat warmup by daily volume with unlimited connected Gmail accounts, plus a free tier.

Where it wins. It connects Gmail over OAuth and prices by daily volume with unlimited accounts, so warming a dozen Google mailboxes does not multiply the bill. There is a free-forever tier to test it, and it is the warmup engine behind Saleshandy. AI-written, topic-specific content runs threaded conversations.

Where it falls short. The shared daily volume has to stretch across every Gmail account, so heavy warmup on some leaves less for the rest. The network is mixed providers, not Google only, and it is warmup alone with no sender.

Visit website

How we ranked these

Our method.

We ranked these for warming Gmail and Google Workspace specifically: how much genuine Google presence the warmup pool has, how clean the OAuth setup is, and the real cost across the mailboxes you actually run. Pricing and features come from each tool's own website as of June 2026, and the weak points come from public user reviews.

We make HotHawk, and it sits at number one, so the honest qualifier comes with it: it is a full sending platform, not a standalone warmer. MailReach and Warmup Inbox warm Gmail against real Google accounts just as we do, and Warmy reads your Google reputation more deeply than we do through its Postmaster integration. You will find both of those on the page. No tool paid to be here, and there are no affiliate links.

FAQ

Google Workspace warmup, answered.

What is the best email warmup tool for Google Workspace?

For Gmail and Google Workspace specifically, you want genuine Google strength in the warmup pool. HotHawk warms against real Google and Microsoft inboxes only and bundles it into the sender. MailReach runs a network that is primarily real Google and Microsoft accounts and adds a spam tester. Warmy is the most instrumented standalone option for Google, with a Postmaster integration. All connect Google Workspace in one click over OAuth.

How do I warm up a new Gmail or Google Workspace account?

Connect the mailbox over OAuth, set a low daily volume and let the tool ramp it up gradually over a couple of weeks before you send any real campaigns. Make sure SPF, DKIM and DMARC are configured on the domain first, because warmup cannot fix broken authentication. The point is to build a sending history on the account before it does any cold outreach.

Do I need a special warmup tool for Google Workspace?

Not a Google-only one, but you do want a pool with real Google accounts in it. Most tools support Gmail over OAuth; the difference is what your mailbox warms against. A pool restricted to real Google and Microsoft inboxes, like HotHawk's, sends the kind of engagement Gmail trusts, whereas a mixed SMTP network is lower-signal for Google deliverability.

Is Gmail warmup against the rules?

Warmup sends real emails between real mailboxes that get opened and replied to, which is ordinary email activity. The thing to avoid is fake or temporary accounts and reckless volume on a brand-new mailbox. Stick to a pool of real inboxes, ramp gradually, and keep per-mailbox daily limits sensible, which the better tools enforce by default.

How long should I warm a Google Workspace mailbox?

A couple of weeks of gradual warmup before sending real volume is the common rule of thumb, and many teams keep a light warmup running alongside live campaigns to maintain reputation. A brand-new Gmail account needs longer than one with existing history. Let the tool ramp the daily volume rather than jumping straight to a high number.

Comparison based on publicly available information from each provider's website, accurate as of June 2026. Pricing and features change, so check each provider for the latest. Weak points reflect themes in public user reviews, not absolute statements of fact. All product names are trademarks of their respective owners; HotHawk is not affiliated with or endorsed by them. Last updated June 2026.

Send cold emails that get delivered.Never miss a positive reply.

Serious deliverability paired with the best reply management in the market.

Start your 7 day free trial

No credit card required.