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Warm up Tool
Free email warm up for every inbox you send from
Delivery Optimizer automatically sends and receives warm-up emails through your connected work inboxes. Review your settings and monitor activity before increasing campaign volume.

Automatic warm-up,
with visibility and control
Delivery Optimizer handles warm-up email activity through your connected inbox. Keep authentication, campaign list quality and delivery monitoring part of your sending workflow.
What it does
Sends and receives
Delivery Optimizer automatically sends and receives warm-up emails through your connected mailbox. You do not need to send each warm-up message manually.
How you manage it
Review your setup
Connect the inbox you intend to use, review the available warm-up settings and check activity in your account. Follow your mailbox provider's limits as you plan campaign volume.
What to keep in mind
Monitor delivery
Automatic warm-up does not guarantee inbox placement. Authentication, message content, recipient engagement and provider policies also affect delivery.
Set up your inbox before you scale
Delivery Optimizer sends and receives warm-up emails automatically. Review your connected inbox, permissions and available settings before starting.
01
Connect the inbox
Select the work inbox you intend to use. Review the requested permissions and confirm its connection status before continuing.
02
Set your target volume
Choose your intended daily volume and review the limits and guidance shown for your account and mailbox provider.
03
Start warm-up and monitor
Start warm-up after reviewing your settings. Delivery Optimizer sends and receives warm-up emails automatically; monitor activity and delivery signals before increasing campaign volume.
01
A brand-new domain or inbox
No sending history means providers have nothing to judge you on. This is where a ramp genuinely changes the outcome.
02
Resuming after a long pause
A mailbox that's been quiet for months looks new again. Restarting at full volume looks like a compromised account.
When warming actually matters
Warming helps most in a few specific situations, and in one common case you can skip it.
03
Scaling an outreach setup
Adding inboxes to spread volume across a team. Each new mailbox starts from zero history, however established the domain is.
04
When you probably don't need it
An established domain sending consistent volume for months. Your effort is better spent on list quality and authentication.
How warming an inbox
actually works
Automatic warm-up is one part of preparing an inbox. Keep these three practices in place alongside it.
01
Authenticate before you send anything
SPF, DKIM and DMARC come first. Without them, no amount of gradual ramping will convince a mailbox provider that the domain is legitimate.
02
Verify the list, then start small
Verify campaign recipients before outreach. Automatic warm-up does not validate your contact list; review invalid and uncertain addresses before sending to prospects.
03
Keep the pattern consistent
Delivery Optimizer handles warm-up sending and receiving automatically. Plan campaign volume separately, respect provider limits and investigate adverse delivery signals before scaling.
Warming a domain that bounces
is wasted effort
Authenticate your domain and verify the list before increasing volume. Suppress invalid addresses and review catch-all and unknown results separately. Follow current provider guidance and monitor bounces, complaints and delivery signals; pause and investigate when they worsen. Warm-up does not guarantee inbox placement.
2–3
weeks
A common starting range. The real pace depends on your domain
Monitor
signals
Check current mailbox-provider requirements
Unlimited
Work inboxes on any plan
FREE CALCULATOR
What per-inbox pricing costs over a year
Most warm-up platforms bill for every mailbox you connect, so the cost climbs with the size of your sending setup. Move the slider to see the difference.
Inboxes
You send from
−
10
+
1 — 100
Market average
What one inbox costs elsewhere
$408
PER INBOX, PER YEAR
Monthly
Yearly
=
You save
EmailAwesome charges $0 for warm-up
$4,080
PER YEAR
Market average based on the published per-inbox price of MailReach, lemwarm and Warmy.
PRICE COMPARISON
Per-inbox pricing gets worse the moment you grow
Every mailbox you add is another line on the invoice. Here's what a year costs as an outreach setup scales, against a plan that doesn't charge per mailbox at all.
Set up
Category Average
Per year
EmailAwesome
Time
Category average
EmailAwesome
1 month
$49
$5,880
6 months
$29
$3,480
12 months
$25
$3,000
Total
Flat
Included
Tool
Per inbox / mo
10 inboxes / yr
Warmy
$340
$0
lemwarm
$2,040
$0
MailReach
$4,080
$0
EmailAwesome
$4,080
You save
How the comparison is calculated
The category average is $34 per inbox per month, the midpoint of the published list prices. Multiply it by your inbox count over twelve months and you get the yearly figure. EmailAwesome's column is zero because warm up is included in every plan at no extra cost, for a limited time.These are list prices, not negotiated rates, and they exclude the verification credits or sending features bundled into some plans. The comparison isolates warm-up cost alone.
Sources: published vendor pricing pages.
FAQs
Questions about the warm-up tool
Do I need a warm-up tool at all?
It depends on where you're sending from. A brand-new domain or inbox, or one resuming after a long pause, has no sending history for providers to judge — there, a gradual ramp genuinely matters. If you've been sending consistent volume from an established domain for months, the value is much smaller and your effort is better spent on list quality and authentication.
Is the Warm-up Tool included in the Free plan?
Yes — for now. The Warm-up Tool is included in every plan, including Free, with no per-inbox charge and no cap on the number of inboxes. This is a limited-time inclusion: it may become a paid add-on later. Connect your inboxes and review your warm-up settings; Delivery Optimizer sends and receives warm-up emails automatically.
How long does it take to warm up an email domain?
There is no universal warm-up timeline. The pace depends on the domain and inbox history, authentication, target volume, engagement, complaint and bounce signals, and the mailbox provider. Increase volume gradually, avoid sudden spikes, and adjust the plan when reputation or delivery signals deteriorate.
Why did my domain reputation drop immediately after warming up?
Investigate the change rather than assuming a single cause. Compare authentication, audience source, suppression handling, volume changes and provider feedback before and after the campaign. A gradual ramp cannot compensate for unwanted messages or misconfiguration, and the timing alone does not prove that list hygiene caused the decline.
Does EmailAwesome send warm-up emails for me?
Yes. EmailAwesome's Delivery Optimizer automatically sends and receives warm-up emails through your connected mailbox. Review your warm-up settings and monitor activity in your account. Automatic warm-up does not verify campaign recipients or guarantee inbox placement.
Warm-up is the last step,
not the only one
USE CASE
B2B Cold Outreach Preparation
Prepare your B2B prospect list before the first message. Verify addresses with EmailAwesome, keep uncertain contacts separate, and use your targeting criteria to plan outreach for review.
01
Define your target, source list, and exclusions
02
Verify addresses and separate uncertain results
03
Prepare segments and message drafts for review
Best for:
Preparing B2B cold outreach


