Warmerly
Every spam-placed warmup mail is moved to the inbox after 10 to 120 minutes.
Warmerly
lemwarm
One-to-one · Spam rescue
Spam rescue
One row, in depth: what each tool does, the verified numbers, and who each suits.
Lemwarm details read from its pricing page, home page, blog and lemlist's help centre on 21 October 2026.
Warmerly
Every spam-placed warmup mail is moved to the inbox after 10 to 120 minutes.
lemwarm
Its blog says reports include emails saved from spam and other folders; timing and method are not stated.
The short answer
Spam rescue, in one look.
Warmerly moves any warmup email that lands in spam to the inbox after 10 to 120 minutes. Lemwarm's blog says its reports include 'Emails saved from spam and other folders', so it does something similar, but we found no timing or method stated. Last checked 21 October 2026.
lemwarm
Its blog says reports include emails saved from spam and other folders; timing and method are not stated.
The picture
Drawn side by side.
From spam to inbox
Minutes between a warmup email landing in spam and it being moved out
Warmerlylemwarm
Warmerly10 to 120 minutes (10 to 20 for a mailbox's first email)
SpamInbox
0120 min
lemwarmEmails saved from spam are counted in its report. Timing not stated.
SpamInbox
Warmerly's timings come from its warmup code. We found no timing or method on Lemwarm's pages.
How Warmerly does it
Warmerly, in detail.
Every spam-placed warmup mail is moved to the inbox within 10 to 120 minutes.
01
Every spam-placed warmup mail
The processor recovers any warmup message found in a recipient's spam or junk folder. It never touches campaign mail to real prospects.
Warmerly product, checked 21 October 2026
02
What a rescue does
It marks the message read, starred and important and moves it to the inbox. On Gmail, moving out of Spam is the Not spam signal.
Warmerly product, checked 21 October 2026
03
When it happens
Each message has a read delay of 10 to 120 minutes, and the first email of a mailbox is read after 10 to 20 minutes.
Warmerly product, checked 21 October 2026
04
Not sampled
Every message found in spam is rescued. There is no percentage and no random skip, because a message left in Spam keeps teaching the filter that the sender is junk.
Warmerly product, checked 21 October 2026
05
Four folders are searched
The recipient side looks in [Gmail]/Spam, Junk, Spam and Junk Email, which covers Gmail, Outlook and the common IMAP names.
Warmerly product, checked 21 October 2026
06
It clears the junk flag first
Before moving the message, the processor removes the Junk keywords and adds NotJunk keywords. This is best effort, because servers differ on which keywords they accept and errors are ignored.
Warmerly product, checked 21 October 2026
07
A reply follows a rescue
After a rescue the recipient queues a reply, whatever that mailbox's usual reply rate is. The reply is still skipped at thread depth 3, or when the recipient is not active or ageing with warmup on.
Warmerly product, checked 21 October 2026
08
The read delay always comes first
The 10 to 120 minute delay applies before the message is touched, so a rescue never happens within minutes of delivery. A real person would not read it at once either.
Warmerly product, checked 21 October 2026
09
Most mail is opened, some is starred
About 90% of warmup messages are opened and about 20% of the opened ones are flagged important. The rest are left alone, so the pattern is not a fixed 100%.
Warmerly product, checked 21 October 2026
10
Rescues are counted
A rescued job is recorded with its delivered folder as spam and as opened, so rescues show up in placement and rescue figures instead of vanishing.
Warmerly product, checked 21 October 2026
11
Campaign mail is never touched
Only warmup mail between Warmerly mailboxes is rescued. Mail to your real prospects is not read, moved or flagged by this process.
Warmerly product, checked 21 October 2026
12
Lost mail has an end state
A warmup message that is still unfound after 72 hours is closed as unknown, so it stops being searched for and cannot sit in the figures as pending forever.
Warmerly product, checked 21 October 2026
13
Spam placement slows the ramp
A spam placement score of 10 or more cuts a mailbox's daily quota to 70%, and 20 or more cuts it to 40%, until placement recovers.
Warmerly product, checked 21 October 2026
How Lemwarm does it
Lemwarm, in detail.
Reports count emails saved from spam; no timing is stated.
01
Saved from spam in the report
A Lemwarm blog post says the report includes 'Emails saved from spam and other folders'. It does not explain how the rescue works.
lemwarm.com/blog/how-to-boost-your-email-deliverability · read 21 October 2026
02
Warm-up emails are labelled
The same post says warm-up emails are auto-labelled so they sit outside the primary view.
lemwarm.com/blog/how-to-boost-your-email-deliverability · read 21 October 2026
03
The exact report wording
The blog lists what a detailed report includes: 'Total lemwarm emails sent, including replies', 'Emails saved from spam and other folders', 'Where your emails are landing (Cold Email Performance)' and 'Where your replies are landing (Reply Performance)'.
lemwarm.com/blog/how-to-boost-your-email-deliverability · read 21 October 2026
04
Two graphs in the dashboard
lemlist's help centre says the dashboard shows an inbox against spam result, a Cold Email Performance graph with inbox in green and spam in red, and a Reply Performance graph.
help.lemlist.com/en/articles/14653207-how-to-set-up-and-use-lemwarm · read 21 October 2026
05
A spam target
Both the blog and the setup article say to aim for a spam rate of 1 to 2% at most before launching, with a score above 90.
lemwarm.com/blog/how-to-boost-your-email-deliverability · read 21 October 2026
06
Spam can restart the clock
The setup article says spam during the 14-day stabilisation window restarts that window, which ties spam placement to the launch date.
help.lemlist.com/en/articles/14653207-how-to-set-up-and-use-lemwarm · read 21 October 2026
07
Spam in the score
The help centre puts warm-up spam rate at 30 points of the Warmup Score and says 1 spam counts as much as 5 inbox results.
help.lemlist.com/en/articles/8178526-discovering-lemwarm-plans · read 21 October 2026
08
A filter to keep warm-up out of view
The setup article tells you to create a filter in your email provider that moves lemwarm emails out of the primary inbox, and the blog says lemwarm emails are auto-labelled so they stay out of your primary view.
help.lemlist.com/en/articles/14653207-how-to-set-up-and-use-lemwarm · read 21 October 2026
09
Spam as a pause reason
lemlist's pause guide lists a code for warm-up rejected as spam and another for your own inbox filter marking warm-up as spam, each with steps to fix and restart.
help.lemlist.com/en/articles/12918125-why-was-lemwarm-paused-full-guide-to-all-pause-reasons-and-how-to-fix-them · read 21 October 2026
10
Spam after launch
The blog says that if spam placement rises in lemwarm after campaigns start, that signals your campaign activity is hurting the inbox.
lemwarm.com/blog/how-to-boost-your-email-deliverability · read 21 October 2026
What Lemwarm does not say
We looked, and found no statement on these. That is about its published pages only, not about the product.
- How quickly a spam-placed warm-up email is rescued
- Whether rescue applies to every mailbox on Essential or only on Smart
- Whether a rescued email is also replied to, or only moved
- Which folders lemwarm searches for spam
- Whether the rescue is a Smart plan feature or part of Essential
The numbers
Only what we could verify.
| Measure | Warmerly | lemwarm |
|---|---|---|
| Spam rescue | Every spam-placed warmup mail is moved to the inbox after 10 to 120 minutes. | Its blog says reports include emails saved from spam and other folders; timing and method are not stated. |
| Rescue timing | 10 to 120 minutes | Not stated |
| First email of a mailbox | 10 to 20 minutes | Not stated |
| Share of spam-placed warmup mail rescued | All of it | Not stated |
| Typical read delay | 10 to 120 minutes | Not stated |
| Share of warmup mail opened | About 90% | Not stated |
| Spam rate target before launch | No fixed target | 1 to 2% at most |
| Score weight of spam | Not a separate weight | 30 of 100 points in the help centre |
| Time before an unfound message is closed | 72 hours | Not stated |
In practice
What it means for you.
Our reading of the facts above. Not a promise, and not the only reasonable reading.
Rescue is for warmup mail only
Neither tool touches your real campaign mail. Rescuing warmup mail teaches the provider the sender is wanted, but it does not move a prospect's email.
What a rescue is worth
A rescue changes the folder of one warmup message. It does not clean a bad domain, and it cannot move a prospect's email. Its value is the signal to the provider that mail from this sender is wanted.
Reading the numbers after a week
If a mailbox sends 30 warmup emails in a day and 2 land in spam, Warmerly's processor moves both after their read delays, 2 in 30 being about 7%. That is above the 1 to 2% spam target Lemwarm's guidance sets before launch, so the useful question is why 2 landed in spam at all.
When spam keeps coming back
Rescue treats the symptom. Repeated spam placement points to authentication, content or a listed domain, which is why both vendors tie spam to the launch decision rather than treating rescue as the fix.
Do not copy the 'rescue' idea into campaigns
Neither product rescues a real prospect's email. If your campaign mail is landing in spam, the fix is in authentication, volume and copy, and a placement test shows where.
Who it suits
Pick the one that fits.
Warmerly
Warmerly is the better fit if
- You want the rescue timing published
- You want to know the rule before you rely on it
- You want every spam-placed warmup message rescued by a rule you can read
- You want the read delay and the folders searched written down
- You want a reply queued after each rescue
lemwarm
Lemwarm is the better fit if
- You already use lemlist and Lemwarm's report covers your needs
- You want a Cold Email Performance and Reply Performance graph in one dashboard
- You want a stated spam rate target and launch rule built around it
- You want warm-up filtered out of your primary view with provider-side advice
Questions
Does Lemwarm rescue emails from spam?
Its blog lists 'Emails saved from spam and other folders' in the report. It does not say how long it takes. Warmerly publishes 10 to 120 minutes.
Does Warmerly rescue every spam-placed email?
Yes, every warmup message found in a recipient's spam or junk folder, with no sampling. It is moved to the inbox after the 10 to 120 minute read delay. Campaign mail to real prospects is never touched.
How fast does rescue happen?
After a read delay of 10 to 120 minutes from sending, and 10 to 20 minutes for the first email of a new mailbox.
Does Lemwarm publish a rescue timing?
No. Its blog says reports include emails saved from spam and other folders, and the setup article gives spam rate targets, but we found no timing or method for the rescue itself.
Is rescuing mail the same as fixing spam placement?
No. It teaches the provider that the sender is wanted, but repeated spam placement points to authentication, content or listings that need fixing at the source.
Sources
- Lemwarm blog: how lemwarm works
- lemlist help: how to set up and use lemwarm
- lemlist help: discovering lemwarm plans
- lemlist help: why lemwarm pauses
Lemwarm 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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