How to control your warmup sending volume

If you're using WarmySender as your dedicated warmup tool, you have full, granular control over how much each mailbox sends — a per-mailbox target daily volume (anywhere from 10 to 100 warmup emails per day) and a ramp speed that decides how gently it climbs to that target. These controls live one screen deeper than the main warmup list, behind the settings icon on each mailbox, which is why they're easy to miss at first. This guide shows you exactly where they are and how to use them safely.

WarmySender is a 4-pillar outreach platform — Cold Emailing, Email Warmup, LinkedIn Outreach, and Multichannel sequences. This guide covers an Email Warmup question: how to set and adjust your daily warmup sending volume.

Where the controls live

Every mailbox has its own warmup settings screen. To open it:

  1. Open Warmup from the left sidebar.
  2. Find the mailbox you want to adjust in the list.
  3. Click the settings (gear) icon on that mailbox's row.
  4. On the settings screen, scroll to the "Daily Volume & Ramp Strategy" card.

That card is where you set the two controls that matter most for pacing: your target daily volume and your ramp speed. Changes save to that mailbox only, so you can pace each mailbox independently.

Setting your target daily volume

The Target Daily Volume slider sets how many warmup emails a mailbox will send per day once it has finished ramping up. You can set it anywhere from 10 to 100 emails per day, per mailbox.

Two things are worth understanding about this number:

A gentle, lower target (for example 10 to 20 per day) is a perfectly good choice for a brand-new mailbox or a cautious warmup; many established mailboxes settle comfortably around 40 to 60 per day. There's no penalty for choosing a conservative number — keeping volume modest is one of the safest things you can do for a new sender.

Choosing your ramp speed

The Ramp speed setting controls how quickly your mailbox climbs from its low starting point toward the target volume you set. There are three options:

Ramp speed How fast it climbs Best for
Conservative Increases roughly 8% every 2 days Brand-new domains, fragile or previously-flagged mailboxes, or anyone who wants the most cautious possible build-up
Normal Increases roughly 12% every 2 days The balanced default — a steady climb that suits most mailboxes
Aggressive Increases roughly 20% every 2 days Established domains with a healthy sending history that want to reach full volume sooner

If you're not sure, choose Conservative or Normal. A slower ramp is almost always the safer choice — the time you "lose" reaching full volume is small compared with how hard it is to recover a mailbox that was pushed too fast.

Volume always ramps within built-in safety limits

This is the most important thing to understand, and it's deliberately on your side: you set the target and the pace, and warmup always builds up to it gradually, within safety limits that protect your deliverability.

Sudden volume on a fresh mailbox is the single most common reason mail providers flag an account as automated — even when every individual message is legitimate. So warmup ramps in small steps and keeps the early-stage ceiling low while your mailbox is most fragile. You can make the ramp gentler or set a lower target at any time; what you can't do is skip the ramp and jump a brand-new mailbox straight to high volume, because that's exactly the pattern that gets accounts flagged.

WarmySender also chooses a warmup mode for each mailbox automatically (for example "New Domain", "New Mailbox", "Maintenance", or "Recovery") based on how established it is and how cleanly it's landing in the inbox. You don't set this — it adjusts the pacing for you behind the scenes — but you'll see the current mode next to each mailbox, with a short plain-language reason. The how warmup ramps up guide explains what each mode means.

Adjusting several mailboxes at once

If you run multiple mailboxes and want them on the same settings, you don't have to open each one individually:

  1. On the Warmup page, tick the checkbox on each mailbox you want to change (the checkbox is available on mailboxes that already have warmup switched on).
  2. Click "Configure" in the action bar that appears.
  3. Set the target daily volume and ramp speed once, and apply them to all the selected mailboxes together.

This is the quickest way to keep a fleet of mailboxes on a consistent, deliberate warmup pace.

Is granular control included on my plan?

Yes. The warmup volume and ramp controls are included on every WarmySender plan, and they're available during your free trial too — there's no separate upgrade to unlock them. The same controls you see on the trial are the controls you keep on a paid plan.

Warmup itself becomes available once your account is on an active plan or a free trial. If your warmup toggle won't switch on, that's about your account's subscription state rather than a paywall on the granular settings — the volume and ramp controls are never sold as a separate add-on. You can review or change your plan any time under Settings → Billing.

If you'd like a simple, deliverability-first recipe to begin with:

You can revisit these settings whenever you like — warmup keeps your progress when you adjust them.

Frequently asked questions

Where do I set my warmup sending volume?

Open Warmup from the left sidebar, click the settings (gear) icon on the mailbox you want to adjust, and scroll to the "Daily Volume & Ramp Strategy" card. There you'll find the Target Daily Volume slider (10 to 100 emails per day) and the ramp speed selector. Each mailbox has its own settings, so you can pace every mailbox independently. If you want to change several mailboxes at once, select them on the Warmup page and use the "Configure" button instead.

What's the most I can set a mailbox to send?

You can set a target daily volume of up to 100 warmup emails per day, per mailbox, and warmup ramps up to that target gradually rather than jumping to it. Warmup volume is intentionally capped per mailbox to protect your sending reputation — the goal of warmup is steady, natural activity, not maximum throughput. If you need more total volume, the safe way to scale is to connect more mailboxes, ideally spread across different sending domains, so each one warms on its own independent curve. When you're ready to send real outreach at higher volume, that's what cold-email campaigns are for, separate from warmup.

Is granular warmup control a paid-only feature?

No — the daily volume and ramp controls are included on every WarmySender plan, and they're fully available during your free trial as well. There is no separate upgrade or add-on to unlock granular warmup control; the controls you use on the trial are the same ones you keep on a paid plan. Warmup as a whole becomes available once your account is on an active plan or a trial, so if your warmup toggle won't turn on, that's about your subscription state rather than a paywall on the settings themselves.

Is it safe to lower my warmup volume?

Yes. Lowering your target daily volume or choosing a gentler ramp is always safe — a smaller, more natural volume is one of the most protective things you can do for a mailbox, especially a newer one. When you raise the target, your mailbox climbs toward the new number gradually rather than jumping, so increases stay safe too. Either direction preserves your warmup history.

How quickly do my changes take effect?

Changes apply from your mailbox's next warmup sending cycle, so you'll see them reflected within a day. One thing to keep in mind: if you raise the target on a mailbox that's still early in its ramp, it won't instantly jump to the higher number — the gradual ramp toward your new target still applies. Lowering the target takes effect right away because there's no reputation risk in sending less.

Can I set an exact number of emails per hour or a custom send schedule?

You set the daily target and the ramp speed, and WarmySender automatically spreads the day's sends across natural-looking time gaps for you — there's no manual hour-by-hour schedule to manage, and that's by design. Pacing the sends across the day, rather than releasing them in a burst, is one of the strongest protections against looking automated to the inbox providers, so the platform handles that timing for you within your chosen daily volume.

Does changing my volume restart my warmup?

No. Adjusting your target daily volume or ramp speed does not reset your warmup or throw away the reputation you've built — your mailbox keeps its progress and simply continues toward the new settings from where it is. You can fine-tune these controls as often as you like without penalty.

I have several mailboxes — can I give each one a different volume?

Yes. Warmup settings are per mailbox, so you can give each mailbox its own target daily volume and ramp speed — for example a gentle 10 per day on a brand-new mailbox and 50 per day on an established one. If instead you want a group of mailboxes on identical settings, select them together on the Warmup page and use the "Configure" button to apply one set of values to all of them at once.

Still have questions? Email [email protected] — we respond within 24 hours on business days.