WarmerlyWarmerly ahead on this row
Sequences, pre-launch checks and one reply inbox, with no cap on sends on paid plans.
Warmerly
Mailivery
One-to-one · Campaign sending
Campaign sending
One row, in depth: what each tool does, the verified numbers, and who each suits.
Mailivery details read from its pricing page, home page, product pages and API page on 21 October 2026.
Warmerly
Sequences, pre-launch checks and one reply inbox, with no cap on sends on paid plans.
Mailivery
No campaign sender found on its pages; its pricing page calls the plans a deliverability bundle.
The short answer
Campaign sending, in one look.
Warmerly sends campaigns from the same mailboxes it warms, with sequences, pre-launch checks, a sending schedule and one reply inbox. We found no campaign sender on Mailivery's pages: it describes itself as a deliverability bundle and an API for partners, so you would send from another tool and use Mailivery to warm and monitor the mailboxes. Last checked 22 October 2026.
Mailivery
No campaign sender found on its pages; its pricing page calls the plans a deliverability bundle.
The picture
Drawn side by side.
Mailbox to reply
The steps each page describes
WarmerlyMailivery
Warmerly
WarmupSequenceSendReply inbox
Mailivery
Warm-upBlacklist monitoringVerificationPlacement test
Mailivery connects to your own sending tool or SMTP provider. We found no campaign sender on its pages.
What is in the plan
As each company states it
WarmerlyMailivery
Warm and send
- Sequences with LinkedIn steps
- Pre-launch checks
- No cap on sends on paid plans
A deliverability bundle
- Email warm-up
- Blacklist monitoring
- Email verification
- Spam words checker
Free is capped at 100 campaign sends a month. Read on mailivery.io/pricing on 21 October 2026.
On screen
What it looks like.
WarmerlySample data
How Warmerly does it
Warmerly, in detail.
A campaign builder on the same mailboxes you warm, with a schedule, launch checks and one inbox for replies.
01
Sequences
Email, wait, LinkedIn and branching steps in a list editor or a drag-and-drop canvas, with an AI opener step.
Warmerly product, checked 21 October 2026
02
Pre-launch checks
A readiness check blocks a launch with no usable step or sender, and warns about DNS problems and spam-style copy.
Warmerly product, checked 21 October 2026
03
No cap on sends on paid plans
Starter, Growth and Agency send without a monthly meter. Each mailbox still sends inside its daily limit. Free is capped at 100 sends a month.
Warmerly product, checked 21 October 2026
04
One reply inbox
Replies land in one inbox with LinkedIn replies. A genuine reply stops that lead's sequence by default.
Warmerly product, checked 21 October 2026
05
Templates to start from
A blank sequence offers Three-step cold intro, Two-touch follow-up, LinkedIn then email and Single send, or a copy from another campaign. Every step stays editable and changes save by themselves.
Warmerly product, checked 21 October 2026
06
A schedule you control
Sending days default to Monday to Friday and hours to 09:00 to 17:00 in the campaign's timezone. The minimum wait between sends from one mailbox defaults to 10 minutes, and the campaign daily limit defaults to 30 and accepts 1 to 50,000.
Warmerly product, checked 21 October 2026
07
Mailbox limits sit under the campaign
Each mailbox has its own daily campaign limit, 30 by default, shared by every campaign using it. A campaign limit of 500 across two mailboxes at 30 sends at most 60.
Warmerly product, checked 21 October 2026
08
Plain campaign statuses
Draft, Sending, Scheduled, Needs attention, Paused, Completed and Archived. Needs attention appears when there is no sending account or a fifth of recent attempts failed.
Warmerly product, checked 21 October 2026
09
Errors block, warnings ask
Launch checks split into errors that stop a start and warnings you can accept once with Start anyway. Spam-style copy, DNS problems and a missing postal address are warnings. A missing step, sender or lead is an error.
Warmerly product, checked 21 October 2026
10
Merge tags are checked
A step that uses a tag that is neither built in nor a lead custom variable blocks the launch, so a broken placeholder is caught before it goes out.
Warmerly product, checked 21 October 2026
11
Verified leads go straight in
Email verification results can be added to a campaign, and only Safe to send addresses are included by default.
Warmerly product, checked 21 October 2026
How Mailivery does it
Mailivery, in detail.
A deliverability bundle and a partner API on its own pages, with warm-up connecting to the sender you already use.
01
A deliverability bundle
The pricing page says every plan includes the complete deliverability bundle: email warm-up, blacklist monitoring, email verification and a spam words checker.
mailivery.io/pricing · read 21 October 2026
02
Connect your own sender
It connects to Gmail, Google Workspace, Microsoft 365, Outlook, SendGrid, Amazon SES, Mailgun and any SMTP for warm-up.
mailivery.io/email-warm-up · read 21 October 2026
03
Embeddable web form
Its home page mentions an embeddable web form for onboarding.
mailivery.io · read 21 October 2026
04
Sender-neutral by design
Its inbox placement page says the test works with emails from Instantly, Smartlead, Mailchimp, SendGrid or anything else, in a copy-paste mode with no integration.
mailivery.io/inbox-placement-test · read 22 October 2026
05
Who it says it is for
Its warm-up page lists sales teams, agencies, SaaS platforms and email marketers, and says platforms such as Woodpecker and Skylead build warm-up into their product with Mailivery.
mailivery.io/email-warm-up · read 22 October 2026
06
Warm-up alongside live campaigns
Its FAQ says to keep warm-up running during outreach because it offsets negative engagement, and recommends a 1:1 ratio of cold sends to warm-up emails a day.
mailivery.io/email-warm-up · read 22 October 2026
07
Warm-up mail kept out of the way
It says warm-up emails are organised into a dedicated folder or label so they stay apart from real correspondence.
mailivery.io/how-it-works · read 22 October 2026
08
A spam words checker
The pricing page lists a spam words checker with the deliverability bundle, which is the nearest thing it describes to a pre-send check on copy.
mailivery.io/pricing · read 22 October 2026
09
Placement tests from outside
Its placement test can be run from Mailivery or in copy-paste mode from an external platform, with content scored against cold email and marketing models.
mailivery.io/inbox-placement-test · read 22 October 2026
10
Team roles
It says you can invite teammates, assign roles and monitor each inbox's warm-up from one dashboard. It describes no shared campaign workspace.
mailivery.io · read 22 October 2026
What Mailivery does not say
We looked, and found no statement on these. That is about its published pages only, not about the product.
- A campaign or sequence builder
- A reply inbox for sales conversations
- Sending limits for campaigns
- Any mention of sequences, steps, waits or follow-ups
- Lead lists or a way to add leads to a send
- Open, click or reply tracking for sales email
The numbers
Only what we could verify.
| Measure | Warmerly | Mailivery |
|---|---|---|
| Campaign sending | Sequences, pre-launch checks and one reply inbox, with no cap on sends on paid plans. | No campaign sender found on its pages; its pricing page calls the plans a deliverability bundle. |
| Campaign sends on a paid plan | No cap | Not applicable, no sender found |
| Sender on the pricing page | Yes | No |
| Reply inbox | One, with LinkedIn replies | Not stated |
| Sequence steps | Email, wait, LinkedIn and branching steps | Not applicable, none found |
| Default minimum gap between sends | 10 minutes | Not applicable |
| Default sending hours | 09:00 to 17:00, Monday to Friday | Warm-up schedule and time zone settings only |
| Pre-send copy check | Spam-word and link checks at launch | Spam words checker, in its bundle |
| Cold send to warm-up ratio advice | Warmup runs on the same mailbox | 1:1, per its FAQ |
In practice
What it means for you.
Our reading of the facts above. Not a promise, and not the only reasonable reading.
They solve different jobs
Mailivery is for warming and monitoring mailboxes you send from elsewhere. Warmerly warms and sends.
Both can sit beside another sender
You can warm a mailbox with either and send from another tool.
Working out one mailbox's day
An 8-hour window with a 10-minute gap is about 48 sends per mailbox, as our schedule help explains. Ten mailboxes on one campaign therefore have a ceiling near 480, whatever the daily limit says. The default mailbox limit of 30 lowers that to 300.
Matching warm-up to cold sends
Mailivery advises 1:1, so 50 cold emails a day means a warm-up speed of 50 a day. That volume comes from the warm-up allowance, which on its Starter plan is 200 a day shared across every mailbox.
Keeping two tools
Warm with Mailivery and send from Instantly or another sender, and you pay for both, but each does one job. Moving the sending into Warmerly removes a tool and keeps warm-up and campaign mail on the same mailbox.
Before you press start
A Warmerly launch with no lead, no sender or a broken merge tag is stopped. With a separate sender you rely on that tool's own checks, and Mailivery's pages describe none for campaigns.
Replies
Warmerly stops a lead's sequence when a genuine reply arrives. If you send elsewhere, replies and sequence logic live in that tool, and Mailivery does not read them.
Who it suits
Pick the one that fits.
Warmerly
Warmerly is the better fit if
- You want warmup and campaigns in one tool
- You want LinkedIn steps in the same sequence
- You want to cut a sender and a warm-up tool down to one
- You want launch checks that stop a broken campaign
- You want to control sending hours and gaps in the same place as warm-up
Mailivery
Mailivery is the better fit if
- You already send from another tool and want only warmup and monitoring
- You want a spam words checker
- You send through a platform your team already knows and only need the mailboxes kept healthy
- You are a platform or agency that wants warm-up behind an API
Questions
Does Warmerly send campaigns?
Yes. It sends sequences from the same mailboxes it warms, with pre-launch checks and one reply inbox.
Does Mailivery send campaigns?
We found no campaign sender on its pages. It warms and monitors mailboxes you send from.
What stops a Warmerly campaign from sending?
Launch errors block it: no usable step, no sender, no queued lead or a broken merge tag. Warnings, such as spam-style copy or a DNS problem, ask you to confirm once.
Can I send from another tool and warm with Warmerly?
Yes. A mailbox can be warmed in Warmerly while another tool sends. You then use that tool's own sequence features.
Does Mailivery work with my sending platform?
Its placement test says it works with emails from Instantly, Smartlead, Mailchimp, SendGrid or anything else through copy-paste mode, and warm-up connects over Gmail, Microsoft 365 or SMTP.
Sources
- Mailivery pricing
- Mailivery email warm-up page
- Mailivery home page
- Mailivery how it works
- Mailivery inbox placement test
Mailivery pages were read on 21 October 2026. Plans and wording change, so check the vendor's own page before you decide. Warmerly details come from the product as it runs today.
More features
See it on your own mailbox.
Connect a mailbox. Warmerly runs alongside whatever you send from now, so you can compare before you move anything.
Free plan, no card. Paid plans: 7-day trial, first charge on day 8.