Reachkit vs HubSpot

For cold email, I’d use both: keep HubSpot as your CRM, and send to cold lists from somewhere else. HubSpot’s sequences are one-to-one sales emails from a rep’s own work inbox, and they work best with people who already know the company. First-touch outreach to new prospects belongs on separate domains, with the interested replies flowing into HubSpot. Checked October 2026.

Stay with HubSpot sequences alone if:

• You send a few hundred emails a day or fewer, mostly to people who know you or opted in.
• Your outreach mixes emails with calls, LinkedIn tasks and meetings, all tied to deals.
• Your team already pays for Sales Hub Professional seats.

Add Reachkit next to HubSpot if:

• You email new prospects from lists and want your main domain kept out of it.
• You’d rather have inboxes, warmup and rotation set up for you than connect mailboxes rep by rep.
• You want positive replies pushed into HubSpot as a contact, a deal and the email thread (Reachkit’s Scale plan).

HubSpot sequences are built for a rep working their own pipeline: timed emails mixed with call tasks, LinkedIn Sales Navigator tasks and to-dos, all logged on the contact record. HubSpot calls these one-to-one sales emails, sent from the rep’s connected inbox rather than its marketing servers. A sequence stops by itself when the contact replies, books a meeting, bounces or unsubscribes.

That’s a real strength after a trade show or when a deal goes quiet: the email, the next call, the meeting link and the deal stage sit in one place. HubSpot’s guidance on prospecting points two ways, though. Its help center suggests bulk enrollment for events, inactive accounts and “…a segmented list of prospects,” while its blog says: “Use bulk enroll for specific use-cases, not for prospecting.”

Cold email at volume is a different job: strangers, hundreds a day, from inboxes that need warming and rotating, on domains you can afford to risk. HubSpot doesn’t do that infrastructure side, and I don’t count it as a flaw. It’s a CRM, and it sends the way a CRM should, from real people’s inboxes.

Cold email needs separate domains and warmed inboxes because the domain you send from carries the reputation. My rule is to never send cold volume from the domain your team, your customers and your invoices depend on. If a campaign draws spam complaints, that’s the domain that pays.

In HubSpot, each rep connects a work mailbox from Gmail, Microsoft 365, Exchange or IMAP. HubSpot documents no warmup for those inboxes, and an account can connect only one custom click-tracking domain, shared by every sender. Opens are tracked with a pixel, and HubSpot documents an account-wide off switch for sequence tracking, not a per-sequence one.

HubSpot’s guardrails suit rep email well: bulk sends go out three a minute, admins can set custom daily and per-minute limits, contacts that bounced anywhere on HubSpot can’t be enrolled, and a sender score report tracks the team’s sending. None of that moves the volume off your main domain.

Reachkit handles the sending setup itself. Order done-for-you inboxes and it registers new lookalike domains, adds the SPF, DKIM and DMARC records that show inbox providers the mail is yours, sets up Google Workspace or Microsoft 365 mailboxes carrying your name and photo, and switches on warmup, which needs at least three weeks before the first campaign.

From there, the defaults carry the load:

• A new inbox sends 3 campaign emails on its first day and climbs by 3 a day, up to 20.
• New sends are spread across a campaign’s inboxes, so no mailbox carries the volume alone.
• There’s no click tracking, and open tracking is off by default: pixels misfire on security scanners and privacy features, and they can hurt spam scores.
• Uploaded lists go through verification by default, and a campaign whose bounces top 5% pauses on its own.

Day to day, HubSpot is organized around the contact record and Reachkit around the reply. In HubSpot, a reply lands in the rep’s own mailbox, gets logged on the contact’s timeline and ends that contact’s sequence. Reps then work calls and manual emails from task queues, which suits one person with their own pipeline.

With cold lists, that routine gets heavier. A contact can be in only one sequence at a time, new contacts go in by hand 50 at a time unless you use Enterprise workflows or the Sequences API, and every sender needs a paid Sales seat.

Reachkit collects replies from every sending inbox in one shared inbox, the Unibox. Replies arrive tagged with one of 12 AI labels, like Interested or Not Now, and anyone with Unibox access can answer them, with no fee per teammate. For inboxes on a running campaign, Reachkit looks for replies about once a minute.

Both platforms now have AI that writes outreach and let assistants like Claude and ChatGPT work inside them. The difference is how much the AI does on its own.

HubSpot’s Prospecting Agent watches for buying signals, pulls contacts from a data provider you connect, such as Apollo or ZoomInfo, drafts the outreach and can send it without review. Since April 14, 2026 it costs $1 per lead, paid in HubSpot credits. It sends from the inbox of the contact owner, the company owner or a chosen user, so the domain question doesn’t go away.

HubSpot also runs a remote MCP server, with connectors for Claude and ChatGPT. MCP (Model Context Protocol) is the plug that lets an AI assistant read and act inside another app. HubSpot’s covers CRM records, segments, marketing emails and campaigns, and its documentation lists no sequence tools (checked October 2026).

Reachkit’s AI stops at drafting. From a one-sentence brief it writes the campaign, suggests a matching audience from 500M+ profiles, writes warmup emails and tags replies, and leaves answering leads and booking meetings to you. Its MCP connection is open on all plans, the trial too, shows each email exactly as it would send and is built to hold for your approval before launch; the REST API, webhooks, Zapier and n8n need Scale.

HubSpot prices sequences per seat. Enrichment of contacts already in the CRM is included, but the sending setup (mailboxes, domains, warmup) and data on new prospects are not. Reachkit prices per workspace, and its HubSpot sync needs Scale. Both columns assume HubSpot stays your CRM: one adds Professional seats for sequences, the other adds Reachkit Scale. All figures are year one, before tax, from each vendor’s public pricing page in October 2026; ranges run from annual to monthly billing, and HubSpot’s monthly option still means a one-year commitment.

A founder starting out: 1 user, 10 inboxes on 5 domains, about 4,000 emails a month to 1,500 new prospects.

HubSpot handles this volume easily: about 182 sends a business day against a 500 cap, in about 30 enrollment batches a month. Scale’s 5,000 monthly credits cover all 1,500 prospects. Without the sync, Reachkit’s Growth plan with the same inboxes costs $1,023 to $1,143, plus about $150 in credits if every lead comes from Lead Finder; its 5,000 stored contacts fill up in month four unless you clear out finished campaigns.

An agency or growing team: 3 users, 60 inboxes on 20 domains, about 25,000 emails a month to 10,000 new prospects.

The totals look close, but the HubSpot column still needs 60 mailboxes on 20 domains, and three Professional seats would run at about 76% of their daily cap every business day, enrolled in about 200 batches of 50 a month. Scale’s first tier stores 25,000 contacts, so at this pace you’d prune finished campaigns or move up a tier within about two and a half months, and credits for every prospect add about $1,500 a year. If you already pay for Sales Hub Professional, sequences cost nothing extra, so decide on caps, domains and list rules instead.

HubSpot Sales Hub has a strong reputation as sales software. G2 reviewers rate it 4.4 out of 5 across more than 14,000 reviews, and it scores 4.5 on Capterra UK from 506 reviews, as of October 2026. A Capterra UK reviewer summed up why teams like it: “Sequences do what they need to for outbound work, the meeting scheduler has plenty of options…” The same reviewer wanted more sequence automation, “…not stuck behind the enterprise license.”

The complaints about cold outreach are narrow, and they repeat:

• The 50-contact batch. “Is there no way to enroll more than 50 people in a sequence at once? This is nuts,” wrote one r/hubspot user.
• The daily cap. Another r/hubspot thread asks for an “add 500 more for $x/month” option that doesn’t exist.
• Blocked mailboxes. HubSpot Community threads describe Microsoft blocking the sending mailbox after sequence sends.

A US marketing agency founder, a Reachkit customer, put it this way on a call: “We’re trying to outreach [contacts] from HubSpot, but we’re obviously constrained over there in what we can do, but we’re not with Reachkit.”

There are setups where I’d keep everything in HubSpot and skip a second tool:

• Low-volume, rep-led outreach. A rep writing to people they’ve met, reviving dormant deals or following up after an event is what sequences do well. Sending from the rep’s real inbox is the point there, not a risk.
• A process built around the CRM. If one email step should lead to a call task, a LinkedIn task and a meeting link, with every touch on the deal record, HubSpot does it in one place. Reachkit is email only, and its HubSpot sync pushes one way.
• A team already on Sales Hub Professional. Sequences are included, and 500 sends per seat a day is plenty for one-to-one follow-up with known or opted-in contacts.

HubSpot is also a far bigger platform, with marketing, service, forecasting, reporting and more than 2,000 apps in its marketplace. Reachkit doesn’t try to replace any of that. It covers the cold first touch and hands the warm conversations to HubSpot.

The setup I’d recommend keeps HubSpot as the system of record and moves only the cold first touch:

1. Send from separate domains in Reachkit. Order done-for-you inboxes on new lookalike domains, or connect mailboxes you own on secondary domains, free and without a limit. Let new inboxes warm for at least three weeks before the first campaign.
2. Connect HubSpot on Scale. Each positive reply goes to HubSpot as a contact and a deal in the pipeline and stage you choose, with the email thread on the deal’s timeline. Later messages are logged to the same deal, and a rep’s reply sent from HubSpot is logged back to the Unibox. The push is one-way, and each Reachkit workspace links to one HubSpot account.
3. Keep your suppression lists in step. Reachkit blocks unsubscribes across the workspace, but they don’t sync to HubSpot. Before launch, add your customers’ domains and your HubSpot opt-outs to Reachkit’s blocklist, by hand, by API or through an AI assistant.
4. Let HubSpot run the warm part. Once the deal exists, reps work it there, including follow-up sequences from their own inbox on Sales Hub Professional.

HubSpot supports this shape. Its Emails API lets other tools log email on CRM records, and contacts created by an integration default to non-marketing, so synced replies don’t count as marketing contacts unless you change that setting. A financial services founder in Ireland, a Reachkit customer, liked seeing the lead in both places: “I love the way it’s marked as interested in the platform, and also when it’s in the HubSpot system as well, which is really cool.”

HubSpot is a very good CRM, and its sequences do what they were built for: helping a rep follow up with people who already know the company. I wouldn’t run cold email through them. The 500-a-day seat cap, the batches of 50 and HubSpot’s own list rules all point the same way, and so does my rule about keeping cold volume off your main domain. Keep HubSpot, send the first touch from separate domains, and let the positive replies land in HubSpot. You can test the sending side in Reachkit for 30 days without a card, then add the HubSpot sync on Scale.

Comparing other tools? Read the GoHighLevel, Apollo and Instantly comparisons, or how I set up the sending side of cold email.