Warmerly Snov.io

One-to-one · How warmup works

How warmup works

One row, in depth: what each tool does, the verified numbers, and who each suits.

Start free Back to all features

Snov.io details read from its pricing page, home page, warm-up page and help centre on 21 October 2026.

Warmerly

Threaded conversations with quoted replies, and spam-placed warmup mail moved to the inbox

Snov.io

Same-thread conversations in a 35,000-account pool; you set the daily limit and reply rate; spam rescue not stated

The short answer

How warmup works, in one look.

Both warm a mailbox by exchanging messages inside a network. Warmerly's reply quotes the earlier message, and any warmup mail that lands in spam is moved to the inbox and answered. Snov.io says it creates same-thread conversations in a 35,000-account pool and lets you set the daily limit and reply rate. Its pages do not say what happens when warm-up mail lands in spam. Last checked 21 October 2026.

WarmerlyWarmerly ahead on this row

Threaded conversations with quoted replies, and spam-placed warmup mail moved to the inbox

Snov.io

Same-thread conversations in a 35,000-account pool; you set the daily limit and reply rate; spam rescue not stated

The picture

Drawn side by side.

When warmup mail lands in spam

What each product says it does about it

WarmerlySnov.io

WarmerlyMoved to the inbox and answered, 10 to 120 minutes after sending

SpamInbox

0120 min

Snov.ioNot stated on its warm-up pages

SpamInbox

Warmerly's timing comes from its warmup code. Snov.io's pages do not describe moving warm-up mail out of spam.

On screen

What it looks like.

Warmup. Every mailbox with its warmup day, today's limit and the reason for it, sample data — Warmup. Every mailbox with its warmup day, today's limit and the reason for it.Warmerly app, sample data.

How Warmerly does it

Warmerly, in detail.

A fixed 30-day ramp, threaded conversations, and spam rescue on every spam-placed warmup message.

The ramp is set by us, not by a slider

The daily quota is interpolated between anchor points: 4 a day at day 0, 8 at day 3, 15 at day 7, 25 at day 14, 35 at day 21 and 50 at day 30. It counts days on which the mailbox really sent, so a paused or newly enabled old mailbox cannot skip ahead. Domain age is not an input.

Warmerly product, checked 21 October 2026

What each warmup message does

A warmup mail is opened after a delay of 10 to 120 minutes, about 90 per cent of ordinary mail is opened, about 20 per cent of opened mail is starred as important, and the recipient replies with a default probability of 0.3 on a first message, stopping at thread depth 3. Spam-placed mail is different: every message is read, moved to the inbox and answered.

Warmerly product, checked 21 October 2026

A peer pool, with terms

Warmup mail is real mail between mailboxes in one pool. The Warmup Network Participation Terms say the pool includes other customers' mailboxes and may include mailboxes Warmerly hosts or operates. The planner picks each recipient by spreading load, mixing providers and how that recipient's domain has treated the sender over the last 14 days. A sender does not write to the same recipient twice within 72 hours (relaxing to 48 then 24 if the pool runs short).

Warmerly product, checked 21 October 2026

What a rescue does

In order: remove the Junk keywords and add NotJunk (best effort, servers differ), mark the message read, starred and important, and move it to the inbox. On Gmail, moving out of Spam is the 'Not spam' signal. A reply from the recipient is then queued whatever the mailbox's reply probability, unless the thread is at depth 3 or the recipient cannot reply.

Warmerly product, checked 21 October 2026

How Snov.io does it

Snov.io, in detail.

Automated warm-up in a shared pool: it sends and replies, raises volume in steps, and tracks a sender reputation score.

A pool of 35,000 accounts

The warm-up page says the inbox pool includes 35,000 high-quality accounts, and mentions a premium pool of business and corporate domains.

snov.io/email-warm-up · read 21 October 2026

Same-thread conversations

It says warm-up generates realistic same-thread conversations, and describes them as AI-powered, inside a large deliverability network.

snov.io/email-warm-up · read 21 October 2026

You set the limit and the reply rate

Volume rises in steps, you can set a daily limit, and the number of replies depends on a Reply rate you set in the warm-up settings.

snov.io/knowledgebase/faq-email-warm-up · read 21 October 2026

Suggested volumes

The FAQ says to start with 5 to 10 emails a day, then 20 to 30, eventually 30 to 50 a day if stable. It does not publish an exact schedule.

snov.io/email-warm-up · read 21 October 2026

How long to warm

Its help FAQ says at least 4 weeks for newly created mailboxes and at least 2 weeks for older accounts with some sending history.

snov.io/knowledgebase/faq-email-warm-up · read 21 October 2026

Warm-up while campaigns run

The FAQ suggests pausing campaigns during warm-up, or keeping warm-up running at 10 to 20 emails a day while campaigns are active.

snov.io/knowledgebase/faq-email-warm-up · read 21 October 2026

What Snov.io does not say

We looked, and found no statement on these. That is about its published pages only, not about the product.

Whether or how warm-up mail that lands in spam is moved to the inbox
How the sender reputation score is calculated
Whether warm-up checks SPF, DKIM or DMARC
How pool accounts are selected or rotated

Where the sources disagree

We report each version rather than pick one.

Snov.io's warm-up page promises immediate results and says emails should leave spam after one campaign, while its FAQ says 2 to 4 weeks is ideal and at least 4 weeks for new mailboxes.
The warm-up page calls the conversations AI-powered and also describes the network as real email accounts, and does not explain how the two fit together.

The numbers

Only what we could verify.

How warmup works: Warmerly and Snov.io side by side. Warmerly is in the first column.
Measure	Warmerly	Snov.io
How warmup works	Threaded conversations with quoted replies, and spam-placed warmup mail moved to the inbox	Same-thread conversations in a 35,000-account pool; you set the daily limit and reply rate; spam rescue not stated
Pool size	Peer pool of customer mailboxes	35,000 accounts
Spam rescue	Every spam-placed warmup message	Not stated
Ramp start	4 a day	5 to 10 a day (suggested)

In practice

What it means for you.

Our reading of the facts above. Not a promise, and not the only reasonable reading.

Our reading

Warmerly publishes the mechanics of its ramp, rescue and replies. Snov.io publishes a pool size and a recommended range, and its pages leave the mechanics open. That does not mean its warm-up does less, only that we cannot compare it from its pages.

Where Snov.io is ahead

It states a pool of 35,000 accounts, and lets you set reply rate and daily limit yourself. Warmerly's ramp is fixed on purpose, and you can only lower the daily limit.

Who it suits

Pick the one that fits.

Warmerly

Warmerly is the better fit if

You want a fixed, visible ramp and spam rescue stated plainly
You would rather not tune warm-up settings

Snov.io

Snov.io is the better fit if

You want to set the reply rate and daily limit yourself
You want warm-up inside the same plan as the rest of Snov.io

Questions

Does Snov.io rescue warm-up emails from spam?

Its warm-up pages do not say. Warmerly moves every spam-placed warmup message to the inbox, marks it important and answers it.

How big is Snov.io's warm-up pool?

Its warm-up page says the inbox pool includes 35,000 high-quality accounts, and mentions a premium pool of business and corporate domains. Warmerly publishes the mechanics of its ramp and replies, not a pool size.

Can I set the reply rate and daily limit?

On Snov.io, yes: you can set a daily limit and a reply rate in the warm-up settings. On Warmerly the ramp is fixed on purpose and you can only lower the daily limit.

How does the Warmerly warm-up ramp start?

It starts at 4 a day on day 0 and reaches 50 a day at day 30. Snov.io suggests starting with 5 to 10 emails a day.

Sources

Snov.io 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

PreviousWarming 26 to 100 mailboxes NextWarmup volume per mailbox

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.

Start free Full Snov.io comparison

Free plan, no card. Paid plans: 7-day trial, first charge on day 8.