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Warmerly Skylead
One-to-one · Email sending and mailboxes

Email sending and mailboxes

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

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Skylead details read from its pricing page, terms, privacy policy and feature pages on 21 October 2026.

Warmerly

Gmail, Outlook, Zoho or any SMTP and IMAP mailbox; 30 emails a day per mailbox by default and no monthly cap.

Skylead

Unlimited email accounts rotated in a campaign, with 100,000 emails a month on All-in-one.

The short answer

Email sending and mailboxes, in one look.

Warmerly counts mailboxes by plan, has no monthly send cap on paid plans, and adds a ramp, a bounce brake and pre-launch checks. Skylead lets you connect unlimited email accounts and rotate them in a campaign, with 100,000 emails a month on All-in-one. Neither gives the other's numbers. Last checked 21 October 2026.

Warmerly

Gmail, Outlook, Zoho or any SMTP and IMAP mailbox; 30 emails a day per mailbox by default and no monthly cap.

Skylead

Unlimited email accounts rotated in a campaign, with 100,000 emails a month on All-in-one.

The picture

Drawn side by side.

What bounds the volume

As each states it

WarmerlySkylead

30 a day per mailbox, no monthly cap

  • Mailboxes or email accounts: 5 on Starter, 25 on Growth, 100 on Agency
  • Emails a month: No monthly cap on paid plans
  • Daily limit per mailbox: 30 by default

Unlimited accounts, 100,000 a month

  • Mailboxes or email accounts: Unlimited, as it states
  • Emails a month: 100,000 per month on All-in-one
  • Daily limit per mailbox: Not stated

Skylead's email page describes volume differently: tens of thousands a month in one place and thousands a day in another.

The guard rails each publishes

Before and during a send

WarmerlySkylead
Warmerly
Ramp 3 to 15 a dayBounce brake from 2 per centPause at 7 per cent13 pre-launch checks
Skylead
Rotate accounts in a campaignEmail schedulingGlobal blacklist100,000 a month

We found no published daily limit, bounce threshold or pre-launch check on Skylead's pages. It may exist in the product.

On screen

What it looks like.

WarmerlySample data
Campaigns. A campaign list, its sequence and the pre-launch checks, sample dataCampaigns. A campaign list, its sequence and the pre-launch checks, sample data
Campaigns. A campaign list, its sequence and the pre-launch checks.Warmerly app, sample data.
How Warmerly does it

Warmerly, in detail.

A full email campaign engine: sequence steps, scheduling, a 30 a day default per mailbox, a ramp from 3 to 15 a day, a bounce brake from 2 per cent, and 13 kinds of pre-launch check.

01

A daily limit per mailbox: 30 by default

Each mailbox has its own daily campaign limit, 30 by default. A campaign has its own daily limit field too, also 30 by default. Sending is not metered on paid plans: what bounds volume is mailboxes times each mailbox's daily limit. The Free plan allows 100 campaign sends a month.

Warmerly product, checked 21 October 2026

02

A volume ramp from 3 to 15 a day

A campaign can ramp each mailbox from 3 emails on sending day 1, adding 1 a day, up to 15 by default, so full volume arrives on the 13th sending day. It is switched on automatically for young mailboxes. A sending day means a day in the campaign's sending days, so weekends hold the cap flat. The ramp can only tighten a mailbox's own limit, never raise it.

Warmerly product, checked 21 October 2026

03

A bounce brake before the pause

Over a rolling 7 days, below 2 per cent bounces a mailbox is untouched. From 2 per cent its daily cap is multiplied by 0.75, from 3 per cent by 0.5 and from 5 per cent by 0.25. At 7 per cent the mailbox is paused. A campaign also pauses when 30 per cent of the leads it tried were rejected outright. None of it applies under 25 sends.

Warmerly product, checked 21 October 2026

04

13 kinds of pre-launch check

The readiness table in the pre-flight doc lists 13 kinds of check before Start: 7 that block (no usable step, plan gate, no sender, no queued leads, unknown merge tag, missing brief for an AI opener, failed AI provider probe) and 6 that warn (no postal address, thin lead research, DNS warn or fail or more than 5 senders on one domain, a free mailbox still waiting, no tracking domain for the unsubscribe link, spam-style copy). A warning needs one acknowledgement.

Warmerly product, checked 21 October 2026

How Skylead does it

Skylead, in detail.

Unlimited email accounts rotated inside one campaign, with scheduling, tracking and a monthly volume stated on the pricing table.

01

Unlimited accounts at no extra cost

The email outreach page says to connect an unlimited number of email accounts at no extra cost. Accounts can be added to one campaign and rotated automatically.

skylead.io/email-outreach · read 21 October 2026

02

100,000 emails a month

The All-in-one column says 100,000 emails per month. The email outreach page speaks of tens of thousands a month in one place and thousands daily in another.

skylead.io/pricing · read 21 October 2026

03

Any provider, custom SMTP

Its home page says it supports all email providers, and the warm-up page says custom SMTP works too.

skylead.io · read 21 October 2026

04

Scheduling, tracking and a blacklist

The table ticks email scheduling and a global blacklist. The email page lists step analytics, A/B testing and daily statistics, with leads blocked by exact or partial email or domain across team seats.

skylead.io/email-outreach · read 21 October 2026

What Skylead does not say

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

  • A daily send limit per account
  • A ramp for new senders
  • A bounce threshold or automatic pause
  • Pre-launch checks before a campaign starts

Where the sources disagree

We report each version rather than pick one.

  • Email volume is described three ways on Skylead's pages: 100,000 emails a month on the pricing table, tens of thousands a month in one hero line and thousands a day on a product card.
The numbers

Only what we could verify.

Email sending and mailboxes: Warmerly and Skylead side by side. Warmerly is in the first column.
MeasureWarmerlySkylead
Email sending and mailboxesGmail, Outlook, Zoho or any SMTP and IMAP mailbox; 30 emails a day per mailbox by default and no monthly cap.Unlimited email accounts rotated in a campaign, with 100,000 emails a month on All-in-one.
Mailboxes or email accounts5 on Starter, 25 on Growth, 100 on AgencyUnlimited, as it states
Emails a monthNo monthly cap on paid plans100,000 per month on All-in-one
Daily limit per mailbox30 by defaultNot stated
ProvidersGmail, Outlook, Zoho or any SMTP and IMAP mailboxAll email providers and custom SMTP, as it states
In practice

What it means for you.

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

1

Skylead is ahead on account count

Unlimited accounts in a campaign suits a team that rotates many senders. Warmerly's mailboxes are limited by plan, 100 on Agency.

2

Warmerly is ahead on guard rails it publishes

A ramp from 3 to 15 a day, a bounce brake from 2 per cent and 13 kinds of pre-launch check are written down. Skylead publishes no equivalent that we found.

3

A monthly ceiling is one thing to plan around

100,000 a month is generous for most teams. Warmerly has no monthly cap on paid plans, and each mailbox's daily limit still bounds volume.

Who it suits

Pick the one that fits.

Warmerly

Warmerly is the better fit if

  • You send from Zoho, a custom domain or any SMTP mailbox
  • You want a ramp, a bounce brake and pre-launch checks
  • You want no monthly send cap on a paid plan
Skylead

Skylead is the better fit if

  • You want to rotate a very large number of email accounts in one campaign
  • You want email in the same seat as LinkedIn
  • Under 100,000 emails a month is plenty
Questions
How many email accounts does Skylead allow?

Unlimited, as it states, with rotation inside a campaign and 100,000 emails a month on All-in-one.

How many mailboxes does Warmerly allow?

5 on Starter, 25 on Growth and 100 on Agency. Paid plans have no monthly send cap.

What is the daily limit per mailbox?

Warmerly defaults to 30. Skylead does not state one.

Which providers can I connect?

Warmerly supports Gmail, Outlook, Zoho or any SMTP and IMAP mailbox. Skylead says all email providers and custom SMTP.

Sources

Skylead 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.

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