Apollo.io Sending Limits, Ramped Up Automatically Every Week
We manage your Apollo.io sending limits one mailbox at a time. Every Monday morning, healthy mailboxes get their daily limit raised by 5, up to 35 by default, and slipping ones come down by 5, never below 15. Included with our email deliverability and managed plans.
How Many Emails a Day Should an Apollo.io Mailbox Send?
Our answer: no more than 35 a day per mailbox. A new mailbox does not start there. It starts at 10 and earns each step up, 5 at a time, one week at a time.
Apollo.io's own guidance points the same way. Keep each mailbox's daily volume modest, and add mailboxes to send more instead of raising one mailbox's limit. Our 35 a day ceiling sits under Apollo.io's recommended maximum.
35 a day is our default ceiling, and we can set a different one for your workspace. It is not an Apollo.io limit. 85% is our deliverability threshold, not an Apollo.io rule. Our weekly review runs on these numbers.
The numbers we run
- Start
- 10 emails a day for a new mailbox
- Climb
- +5 a day per week while the score is 85% or higher
- Ceiling
- 35 a day by default, adjustable per workspace
- Slow down
- -5 a day per week while the score is below 85%
- Floor
- 15 a day. A slowing mailbox never goes lower.
- Per hour
- 6 once the daily limit passes 15, 3 at or below
The Apollo.io Email Ramp-Up Schedule: 10 to 35 a Day, +5 a Week
We set every new mailbox to 10 a day at setup. From there, a healthy mailbox reaches 35 a day in five weekly steps. Each step needs a deliverability score of 85% or higher at the Monday review, and no mailbox changes more than once in 7 days.
If the score drops below 85% on the way up, the climb stops there, and a mailbox above 15 a day steps back down. Warmup timing and the full setup sequence live on our email deliverability page.
Apollo.io Sending Limits, Gated by Each Mailbox's Deliverability Score
Every Monday morning, each connected mailbox that has an Apollo.io deliverability score gets reviewed. The score decides which way its limit moves.
85% or higher: the limit climbs
The daily limit goes up 5, capped at the ceiling: 35 a day by default, or the one we set for your workspace. Once it passes 15, emails per hour goes to 6. A mailbox already at the ceiling stays there.
Below 85%: the limit steps down
Below 85% with a limit above 15, the daily limit comes down 5 a week, never below a floor of 15. At or below 15, it holds. When the score is back at 85% or higher, the +5 climb resumes.
A struggling mailbox at 35 reaches the 15 a day floor in four weekly steps.
Why the moves are small
Apollo.io's deliverability score reflects roughly the last week of sends. At small volumes, a few bounces can swing it. So each mailbox changes at most once every 7 days, in either direction, and only by 5. One noisy week costs a mailbox 5 emails a day, not its whole ramp.
Emails Per Hour, Adjusted to Fit the Daily Cap
A daily limit only counts if the hourly setting lets the mailbox reach it. At the default 3 emails per hour, an 8-hour sending day tops out at 24. A higher daily cap could never be reached.
So once a mailbox's daily limit passes 15, we set emails per hour to 6. When the limit is back at or below 15, it returns to 3.
24
Most a day at 3 per hour
3 an hour across an 8-hour day. A cap above 24 never fills.
35
Reachable at 6 per hour
6 an hour leaves room for the full 35 a day ceiling.
Ramp-Up vs Warm-Up in Apollo.io: What Each One Does
Warm-up builds reputation
Apollo.io's automated warmup exchanges emails with a warmup network to build each mailbox's inbox reputation. It is about reputation, not prospect volume.
Ramp-up controls volume
Ramp-up sets how many real prospect emails each mailbox sends a day, and how fast that number grows. That is what our weekly review manages.
They run side by side. Starting Apollo.io's mailbox warmup does not change a mailbox's daily sending limit, so a new mailbox needs both: warm-up for reputation, ramp-up for volume. For domains, DNS and warmup timing, read our email infrastructure guide for cold outreach.
What the Weekly Ramp-Up Never Touches
It changes two settings on each mailbox: the daily sending limit and emails per hour. Nothing else.
- Apollo.io warmup is never touched.
- The delay between emails is never changed.
- Tracking domains are never changed.
- Mailboxes outside Apollo.io are never touched.
Skipped, with the reason listed
Some mailboxes sit out a week. Each one is listed with its reason:
- No deliverability score yet
- Not actively sending
- Already at the ceiling (35 a day by default)
- Changed in the last 7 days
- Low score, already at the 15 a day floor
Every change and every skipped mailbox goes into a weekly summary for our team.
Built for Teams Sending From Several Apollo.io Mailboxes
- You send from several Apollo.io mailboxes and nobody owns the weekly limit changes.
- You just added mailboxes on secondary domains and need them climbing on a schedule.
- You run Apollo.io's automated warmup and want the prospect-volume side handled too.
- You want a slipping mailbox slowed down at the next weekly review, not whenever someone notices.
How to get it
The weekly ramp-up is part of how we run email deliverability. It comes with our Email Infrastructure Setup ($1,500, two-month engagement) and our managed Apollo.io plans.
Want a read on your current mailboxes first? The Email Deliverability Audit ($499) reviews your domains, DNS, mailboxes, warmup and sending ramp-up, and hands you a written plan. The fee credits 100% toward a setup engagement.
Apollo.io Sending Limits: Frequently Asked Questions
How many emails can I send per day with Apollo.io?
In Apollo.io, each mailbox has its own daily sending limit, so total volume grows with the number of mailboxes you send from. Our recommendation: start each new mailbox at 10 a day and raise it by 5 a week while its deliverability score holds at 85% or higher, up to 35 a day. To send more, add mailboxes. Five mailboxes at 35 a day send up to 175 emails a day between them.
What is the Apollo.io email sending limit per mailbox?
Each Apollo.io mailbox has its own daily sending limit and emails-per-hour setting. Apollo.io's own guidance recommends keeping per-mailbox volume modest and adding mailboxes to grow. Our default ceiling is 35 a day per mailbox, which sits under Apollo.io's recommended maximum, and we can set a different ceiling for your workspace. 35 is GTM Works' number, not an Apollo.io limit.
What is the difference between ramp-up and warm-up in Apollo.io?
Warm-up, Apollo.io's automated warmup, builds inbox reputation by exchanging emails with a warmup network. Ramp-up controls how many real prospect emails each mailbox sends per day. They run side by side, and starting warmup does not change a mailbox's daily limit.
What is a good Apollo.io deliverability score?
We treat 85% or higher as healthy enough to raise a mailbox's daily limit. That is our threshold, not an Apollo.io rule. The score reflects roughly the last week of sends, so at small volumes a few bounces can swing it. That is why we move limits 5 at a time, at most once a week per mailbox.
What happens when a mailbox's deliverability score drops below 85%?
If its daily limit is above 15, the limit comes down 5 at the next Monday review, and again each week the score stays low, never below a floor of 15 a day. At or below 15, it holds. Emails per hour returns to 3 once the limit is back at 15. When the score recovers to 85% or higher, the +5 a week climb resumes.
Why is my Apollo.io sequence not sending emails?
When we troubleshoot this, sending limits are the first thing we check. A mailbox that has hit its daily limit stops sending for the day. A low emails-per-hour setting caps the day early: at 3 an hour, an 8-hour sending day tops out at 24, whatever the daily limit says. Past limits, check that the mailbox is still connected in Apollo.io and that the contacts are active in the sequence.
Should I add more mailboxes instead of raising one mailbox's limit?
Yes. That is our recommendation, and Apollo.io's guidance says the same. Grow volume by adding mailboxes, each ramped to its own ceiling, rather than pushing one mailbox past 35 a day. Spreading volume also means one slipping mailbox slows down while the others keep sending.
Can I get the weekly ramp-up on its own?
No. It is part of how we run email deliverability, included with our Email Infrastructure Setup and our managed Apollo.io plans. It works on Apollo.io mailboxes only.
Related Reading
- Email deliverability setup and monitoring - the full service, with the week-by-week ramp table and a sample weekly report
- Email infrastructure for cold outreach - domains, DNS, mailboxes and warmup
- How many mailboxes do you need for cold email? - size mailboxes and domains against a target send volume
- Cold email infrastructure setup for outbound sales
- Top 12 cold email mistakes to avoid
- All Apollo.io add-ons - reply triage, LinkedIn Outreach and more, built on Apollo.io
Want Your Apollo.io Mailboxes Ramped Every Week?
The weekly ramp-up comes with our email deliverability and managed plans. Tell us how many Apollo.io mailboxes you send from, and we'll take it from there.
Get StartedStill exploring?