Daily limit per mailbox, 30 by default, and per campaign; no provider matching found
Rotation and sending limits
One row, in depth: what each tool does, the verified numbers, and who each suits.
QuickMail details read from its pricing page, home page, product pages and help centre on 21 October 2026.
Daily limit per mailbox, 30 by default, and per campaign; no provider matching found
Inbox Rotation assigns each lead to an inbox at random; optional provider matching; its advice for new inboxes is no more than 15 a day
Rotation and sending limits, in one look.
Warmerly gives each mailbox a daily limit, 30 by default, and each campaign its own daily limit of 30 until you raise it. QuickMail's Inbox Rotation picks one of the campaign's inboxes at random for each lead, and that inbox sends every follow-up. Its help centre advises no more than 15 emails per inbox a day for new inboxes. Last checked 22 October 2026.
Inbox Rotation assigns each lead to an inbox at random; optional provider matching; its advice for new inboxes is no more than 15 a day
Drawn side by side.
Who sends, and how much
Warmerly gives each mailbox a daily limit you set. QuickMail hands each lead to one inbox at random and keeps it there.
| Tool | What it shows |
|---|---|
| Warmerly | Each mailbox has a daily campaign limit, 30 by default, which you can change. A new campaign also starts at 30 a day. |
| QuickMail | Each lead is assigned to one of the campaign's inboxes at random, and that inbox sends every follow-up. Its help advises no more than 15 emails per inbox a day for new inboxes, and each account has a quota of 1,500 a day. |
Meters show the default limit, not today's sends. QuickMail's lines are an example of random assignment.
Warmerly, in detail.
A daily limit on each mailbox and on each campaign, both set by you.
A daily limit per mailbox
Each mailbox keeps a daily campaign limit, 30 by default, which can be changed and raised up to 1,000 through the account settings API.
Warmerly product, checked 21 October 2026
A daily limit per campaign
A new campaign also has a daily limit of 30 until you raise it.
Warmerly product, checked 21 October 2026
Warmup counts first
Warmup volume follows the published ramp and is limited by provider caps and health, with the limiting factor shown for each mailbox.
Warmerly product, checked 21 October 2026
Where Warmerly is behind
We found no setting to match a lead's email provider to the sending mailbox, which QuickMail offers.
Warmerly product, checked 21 October 2026
Round robin across eligible mailboxes
Each send goes to the eligible mailbox that sent least recently. A mailbox is eligible when it is under its daily limit and outside its minimum wait, and its ramp and bounce brake allow it.
Warmerly product, checked 21 October 2026
Follow-ups stay with the first mailbox
Every step after the first comes from the address that sent the first email, so a thread reads as one person. If that mailbox has left the campaign, the lead is picked up by another one.
Warmerly product, checked 21 October 2026
A ramp for young mailboxes
A campaign starts at 3 emails per mailbox on sending day 1 and adds 1 each sending day to a ceiling of 15, reached on the 13th sending day. It is switched on at creation when the project has no mailbox yet or any mailbox has under 14 days of warmup.
Warmerly product, checked 21 October 2026
QuickMail, in detail.
Random inbox assignment per lead, a provider-matching option, and a daily limit you set per account.
How rotation works
When a lead starts a campaign, QuickMail randomly chooses which inbox the journey uses. That inbox sends the first email and every follow-up. There is no option yet to say which leads go to which inbox.
help.quickmail.com/campaigns/inbox-rotation · read 21 October 2026
Match the lead's provider
An option matches the lead's email provider to a sender at the same provider where it can, for example a Google-hosted lead with a Google inbox.
help.quickmail.com/campaigns/inbox-rotation · read 21 October 2026
A daily limit per account
You set the maximum emails per day from each inbox. The limit resets at midnight in the account's timezone.
help.quickmail.com/email-accounts/setting-daily-sending-email-limit · read 21 October 2026
Its own advice on volume
It recommends no more than 15 emails per inbox per day, especially for new inboxes, and lists provider limits of 500 a day for free Gmail, 300 for Outlook and 2,000 for G Suite.
help.quickmail.com/deliverability/throttling-emails-to-avoid-getting-flagged · read 21 October 2026
Unassigning does not stop a lead
A lead stays tied to its inbox for every follow-up, so an inbox you unassign keeps sending to the leads it already started. To reassign, pause the campaign, delete the old inbox, add the new one and set the campaign live again.
help.quickmail.com/campaigns/inbox-rotation · read 22 October 2026
Pausing an inbox leaves leads waiting
It says leads assigned to a paused inbox cannot be reassigned and may be delayed in the sequence. Other campaigns using the same inbox must be paused too before you delete it.
help.quickmail.com/campaigns/inbox-rotation · read 22 October 2026
Turn a bad inbox off by hand
You can toggle an inbox off on the campaign's channels page, or use Deliverability AI to do it automatically through groups.
help.quickmail.com/campaigns/inbox-rotation · read 22 October 2026
Counting what each inbox sent
The Outbox page filters sends by type, inbox, channel and date range, and it keeps only the past 30 days of emails and LinkedIn messages.
help.quickmail.com/campaigns/inbox-rotation · read 22 October 2026
LinkedIn accounts rotate too
Its deliverability page says you can toggle email and LinkedIn accounts on and off in each campaign, so both rotate in the same place.
quickmail.com/email-deliverability · read 22 October 2026
Limits set in bulk
The daily limit resets at midnight in the account's timezone, and you can set it for many inboxes at once from the Email page.
help.quickmail.com/email-accounts/setting-daily-sending-email-limit · read 22 October 2026
What QuickMail does not say
We looked, and found no statement on these. That is about its published pages only, not about the product.
- A way to weight volume between inboxes
- A published maximum number of inboxes per campaign
Where the sources disagree
We report each version rather than pick one.
- QuickMail's home page says Inbox Rotation splits volume between inboxes automatically. Its help page says each lead is assigned at random to one inbox for the whole journey. We describe the help page.
Only what we could verify.
| Measure | Warmerly | QuickMail |
|---|---|---|
| Rotation and sending limits | Daily limit per mailbox, 30 by default, and per campaign; no provider matching found | Inbox Rotation assigns each lead to an inbox at random; optional provider matching; its advice for new inboxes is no more than 15 a day |
| How a lead picks an inbox | Set by the campaign and mailbox limits | At random, then fixed for the journey |
| Daily limit per mailbox | 30 by default | Set by you, quota of 1,500 |
| Advice for new inboxes | Follow the warmup ramp | No more than 15 a day |
| Daily limit per campaign | 30 until you raise it | Not stated |
| Match lead's provider | Not found | Yes, optional |
| Follow-ups come from | The mailbox that sent the first email | The inbox that sent the first email |
| Ramp for new mailboxes | 3 a day on sending day 1, plus 1 a day, up to 15 | Advice only: no more than 15 a day |
| Moving leads to another inbox | Not found | Pause, delete the old inbox, add a new one, resume |
| Rotation covers LinkedIn | LinkedIn senders picked per action within daily limits | Yes, accounts toggled per campaign |
What it means for you.
Our reading of the facts above. Not a promise, and not the only reasonable reading.
Start low on a new inbox
QuickMail's own help page says no more than 15 a day on a new inbox. Warmerly starts a mailbox at 4 warmup emails a day and ramps to 50 by day 30.
Set the limit yourself
Both let you change the daily limit on each inbox. Warmerly's default is 30.
Rotation is random in QuickMail
You cannot choose which leads go to which inbox. If you need that control, check it before you buy.
Both end up near 15
QuickMail advises no more than 15 emails a day from a new inbox. Warmerly's campaign ramp has the same ceiling by default, 15 per mailbox, and applies it for you on young mailboxes instead of leaving it as advice. You can change the three numbers on the campaign's Settings tab.
Swapping an inbox takes a pause
On QuickMail, replacing an inbox in a running campaign means pausing it, deleting the old inbox, adding the new one and resuming. The lead's earlier follow-ups then move to the remaining inboxes at their next step.
Pick the one that fits.
Warmerly is the better fit if
- You want a clear daily limit per mailbox and per campaign
- You want warmup and sending limits in the same place
- You want sticky follow-ups and a built-in ramp without setting them up
- You want the sending order to be fair across campaigns that share mailboxes
QuickMail is the better fit if
- You want to match leads to inboxes at the same provider
- You rotate many inboxes in one campaign
- You want to toggle inboxes on and off per campaign, LinkedIn accounts included
- You want the Outbox to show what each inbox sent in the last 30 days
How does QuickMail rotate inboxes?
It picks one of the campaign's inboxes at random for each lead, and that inbox sends every follow-up. Matching the lead's provider is optional.
What daily limit does Warmerly use?
30 a day by default for each mailbox, and 30 a day for each campaign until you raise it.
How many emails can a new inbox send a day?
QuickMail advises no more than 15. Warmerly's ramp starts at 3 a day on sending day 1 and adds 1 a day, up to 15.
Can I move QuickMail leads to a different inbox?
Yes: pause, delete the old inbox, add a new one and resume. We found no such move in Warmerly.
- QuickMail help: inbox rotation
- QuickMail help: daily sending limit
- QuickMail help: throttling emails
- QuickMail home page
QuickMail 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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- LinkedIn outreach
- Reply inbox
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