Instantly alternative, or Instantly upgrade?

Get More Out of Instantly With Infrastructure Built for It

Most Instantly deliverability problems start with the mailboxes, not the sequencer. Plug pre-warmed Google Workspace & Microsoft 365 mailboxes from $2.50/mo into Instantly, with automated DNS setup and free mailbox replacements.

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Trusted by 1,000+ agencies and companies · Set up in 10 minutes · Works with Instantly, Smartlead, Apollo and more

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Trusted by 1000+ Agencies and Companies

Before you switch

Thinking about leaving Instantly? Check this first.

Low reply rates, emails landing in spam, mailboxes getting burned. It's tempting to blame the sequencer and start shopping for an Instantly alternative. But Instantly can only send what your infrastructure lets it send. If your domains are new, your mailboxes are poorly warmed, or your SPF, DKIM and DMARC aren't set up right, a new tool won't fix it. You'll just carry the same problems to the next platform.

Emails landing in spam

Usually a domain reputation or authentication issue, not a sequencer issue.

Mailboxes getting burned

Too much volume per mailbox and no plan for replacing them.

Costs creeping up

Paying premium per-mailbox prices locked inside one platform.

Fix the foundation, and Instantly becomes the outreach engine you signed up for.

The prerequisites

What Instantly needs to perform at its best

Every Instantly account runs on the same five building blocks. Get these right and everything you do inside Instantly works better.

1Dedicated sending domains.Keep your main company domain safe by sending cold email from separate domains.
2Real Google Workspace and Microsoft 365 mailboxes.Recipients' inboxes trust mailboxes from the major providers.
3Correct authentication.SPF, DKIM and DMARC records on every domain, set up correctly the first time.
4Warmed-up mailboxes and sensible volume.New mailboxes need time to build reputation before they send at full volume.
5A replacement plan.Some mailboxes will eventually burn. The question is whether that stalls your campaigns.

Icemail sets up all five for you, so you can open Instantly and start sending.

How Icemail fits into your Instantly stack

Instantly runs your sequences. Icemail runs the infrastructure underneath. Here's how they work together.

1
Find your domains
Use Icemail's AI Domain Finder to pick sending domains in a few clicks.
2
Create your mailboxes
Google Workspace, Microsoft 365, or pre-warmed mailboxes ready to send.
3
DNS done for you
SPF, DKIM and DMARC are configured automatically.
4
Export to Instantly
Connect your mailboxes to Instantly in one click and launch your campaigns.
5
Replace, don't stall
If a mailbox burns, swap it for free and keep sending.

Buying mailboxes inside Instantly vs. powering Instantly with Icemail

You keep Instantly either way. The difference is who owns your infrastructure, and what it costs.

Feature	Mailboxes bought in Instantly	Icemail mailboxes connected to Instantly
Mailbox cost	From around $4/mailbox/month	From $2.50/mailbox/month
Free mailbox replacements
Use mailboxes in other tools (Smartlead, Apollo, etc.)	Tied to Instantly	Export to any sequencer
AI Domain Finder
Domains, mailboxes and DNS in one dashboard	Partial
Keep using Instantly for sequences

Power Instantly With $2.50 Mailboxes

Instant setup in 10 minutes
Zero loss of existing warmup progress

1-Click Export to Any Cold Outreach Sequencer

Clay

The playbook

5 ways to get more out of Instantly

Spread your volume.

Keep each mailbox to a conservative daily send volume and add mailboxes as you scale, instead of pushing more through each one.

At $2.50 a mailbox, adding capacity is cheap.

Use 2-3 mailboxes per domain.

Spreading mailboxes across domains limits the damage if one domain's reputation dips.

Icemail's AI Domain Finder makes extra domains quick to add.

Match your recipients' providers.

Mix Google Workspace and Microsoft 365 mailboxes so you're sending Google-to-Google and Microsoft-to-Microsoft where it counts.

Icemail offers both from one dashboard.

Start warm.

Plug pre-warmed mailboxes into Instantly and let Instantly's warmup keep them healthy.

Skip weeks of ramp-up.

Replace, don't rescue.

Swap a burned mailbox instead of nursing it back.

Icemail replacements are free.

Built for deliverability

Reach up to 98% inbox placement with pre-warmed mailboxes, automated authentication and infrastructure tuned for cold email.

Reach More Inboxes

Automated DKIM, SPF and DMARC setup in Icemail

Never pay for a replacement mailbox

When a mailbox gets restricted or burned, replace it for free and keep your Instantly campaigns running.

Scale With Confidence

Your infrastructure, not locked to one platform

Your domains and mailboxes stay yours. Use them in Instantly today and any other tool tomorrow.

Own Your Infrastructure

Trusted by teams who send at scale

"Icemail has transformed how I manage my email infrastructure. Automated setup for Google Workspace including DKIM, SPF, and DMARC saved me hours of work."

Suprava S.AcquisitionX

"Affordable pricing and seamless integration with Instantly and Smartlead boosted my deliverability. The support team, even on weekends, was a pleasant surprise."

Michael K.Agency owner

"The self-serve dashboard gives me full control, and the automated mailbox setup is a game-changer. Easy interface and responsive support make it a top choice."

Emily R.Founder

"Switching to Icemail was a game-changer for my agency. Simplifies domain and mailbox management, and the bulk export to cold email tools saved me significant time."

James T.Outbound lead

"Exceeded expectations with ease of use and affordable Google Workspace accounts. Setting up mailboxes was faster than anticipated."

David L.Growth consultant

"Automated setup and domain management are impressive, scaling campaigns effortlessly is perfect for my growing business."

Sarah L.GTM lead

Frequently asked questions

Is Icemail an Instantly alternative?

Icemail isn't a sequencer, so it doesn't replace Instantly's campaigns. It replaces the mailbox and domain layer underneath. If you're looking at Instantly alternatives because of deliverability or mailbox costs, Icemail lets you keep Instantly and fix those problems at the source.

Can I use Icemail with Instantly?

Yes. Create your domains and mailboxes in Icemail, then export them to Instantly in one click. Instantly runs your sequences; Icemail runs the infrastructure.

Do I have to stop using Instantly?

No. Most Icemail customers keep their sequencer. You only change where your mailboxes and domains come from.

What do I need to set up before using Instantly?

Dedicated sending domains, Google Workspace or Microsoft 365 mailboxes, SPF, DKIM and DMARC records, and warmed-up mailboxes. Icemail sets all of this up in about 10 minutes.

How many mailboxes do I need for Instantly?

It depends on how many emails you plan to send each day. Use our free mailbox calculator to work it out.

Will my deliverability improve?

Teams on Icemail reach up to 98% inbox placement thanks to pre-warmed mailboxes, correct authentication and Google partner infrastructure.

Can I move my existing domains and mailboxes to Icemail?

Yes. You can bring your existing domains and mailboxes into Icemail without losing warmup progress or pausing campaigns.

What happens if a mailbox gets burned?

Replace it for free from your Icemail dashboard and reconnect it to Instantly.

What if I switch away from Instantly later?

Your Icemail mailboxes work with any outreach tool, including Smartlead, Apollo and Lemlist, so your infrastructure moves with you.

Keep Instantly. Upgrade what's underneath it.

Book a 30-minute call and we'll map the right domains and mailboxes for your Instantly setup.

Get Started Free Book a demo

Let's talk deliverability?

Book a 30-minute call with our team, we'll map your setup.

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