lemwarm mailbox warm-up - start, pause, and read or update warm-up settings per mailbox.
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openapi: 3.2.0
info:
title: Lemlist Lemwarm API
version: 1.0.0
description: 'Operations tagged lemwarm across 2 of this provider''s published API definitions: lemlist-openapi-v1-legacy.json, lemlist-openapi-v2.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://api.lemlist.com/api
tags:
- name: lemwarm
paths:
/lemwarm/{userMailboxId}/start:
parameters:
- name: userMailboxId
in: path
required: true
example: '{{userMailboxId}}'
schema:
type: string
post:
summary: Start
tags:
- lemwarm
parameters:
- name: Content
in: header
required: false
example: application/json
schema:
type: string
responses:
'200':
headers:
Content-Type:
schema:
type: string
example: application/json
description: Success
content:
application/json:
schema:
type: object
properties:
ok:
type: boolean
example:
ok: true
requestBody:
content:
application/json:
schema:
type: object
example: {}
operationId: postLemwarmByUserMailboxIdStart
x-operation-id-source: derived
servers:
- url: https://api.lemlist.com/api
/lemwarm/{userMailboxId}/pause:
parameters:
- name: userMailboxId
in: path
required: true
example: '{{userMailboxId}}'
schema:
type: string
post:
summary: Pause
tags:
- lemwarm
parameters:
- name: Content
in: header
required: false
example: application/json
schema:
type: string
responses:
'200':
headers:
Content-Type:
schema:
type: string
example: application/json
description: Success
content:
application/json:
schema:
type: object
properties:
ok:
type: boolean
example:
ok: true
requestBody:
content:
application/json:
schema:
type: object
example: {}
operationId: postLemwarmByUserMailboxIdPause
x-operation-id-source: derived
servers:
- url: https://api.lemlist.com/api
/lemwarm/{userMailboxId}/settings:
parameters:
- name: userMailboxId
in: path
required: true
example: '{{userMailboxId}}'
schema:
type: string
get:
summary: Get settings
tags:
- lemwarm
parameters:
- name: Content
in: header
required: false
example: application/json
schema:
type: string
responses:
'200':
headers:
Content-Type:
schema:
type: string
example: application/json
description: Success
content:
application/json:
schema:
type: object
properties:
warmEmailRampup:
type: integer
warmEmailMax:
type: integer
activeAt:
type: string
format: date-time
warmNextEmailAt:
type: string
format: date-time
lastWarmAt:
type: string
format: date-time
deliverability:
type: object
properties:
details:
type: array
items:
type: object
properties:
mx:
type: object
properties:
ok:
type: boolean
message:
type: object
properties:
mx:
type: array
items:
type: object
properties:
exchange:
type: string
priority:
type: integer
spf:
type: object
properties:
ok:
type: boolean
message:
type: string
format: style
dmarc:
type: object
properties:
ok:
type: boolean
message:
type: string
warning:
type: string
ctd:
type: object
properties:
ok:
type: boolean
userConfigured:
type: boolean
userMailboxConfigured:
type: boolean
isEmpty:
type: boolean
message:
type: string
dnsScore:
type: integer
lastAt:
type: string
format: date-time
score:
type: integer
tips:
type: array
items:
type: string
example:
warmEmailRampup: 5
warmEmailMax: 5
activeAt: '2025-04-10T07:38:31.530Z'
warmNextEmailAt: '2025-04-10T07:38:31.530Z'
lastWarmAt: '2025-04-09T13:53:03.229Z'
deliverability:
details:
- mx:
ok: true
message:
mx:
- exchange: ASPMX.L.GOOGLE.com
priority: 1
- exchange: ALT1.ASPMX.L.GOOGLE.com
priority: 5
- exchange: ALT2.ASPMX.L.GOOGLE.com
priority: 5
- exchange: ALT4.ASPMX.L.GOOGLE.com
priority: 10
- exchange: ALT3.ASPMX.L.GOOGLE.com
priority: 10
spf:
ok: true
message: v=spf1 include:_spf.google.com ~all<br>
dmarc:
ok: true
message: v=DMARC1; p=quarantine; rua=mailto:dmarc@lemlist.com
warning: ''
ctd:
ok: false
userConfigured: false
userMailboxConfigured: false
isEmpty: true
message: custom tracking domain is not configured
dnsScore: 100
- statCount: 0
total: 0
- mailboxAge: 30
- dnsNormal: 40
inboxStatsNormal: 0
totalEmailSentNormal: 0
ageNormal: 10
totalEmailSent: 0
blacklistsInfo:
score: 100
lastAt: '2025-04-09T13:34:43.998Z'
score: 70
tips:
- If you send cold emails, make sure to set up your Custom Tracking Domain. This allows you to track open and click rates in your emails safely.
- You just started lemwarm. Let's wait a bit before we can trust this score.
- null
requestBody:
content:
application/json:
schema:
type: object
example: {}
operationId: getLemwarmByUserMailboxIdSettings
x-operation-id-source: derived
patch:
summary: Update settings
tags:
- lemwarm
parameters:
- name: Content
in: header
required: false
example: application/json
schema:
type: string
responses:
'200':
headers:
Content-Type:
schema:
type: string
example: application/json
description: Success
content:
application/json:
schema:
type: object
properties:
ok:
type: boolean
example:
ok: true
requestBody:
content:
application/json:
schema:
type: object
properties:
warmEmailMax:
type: string
warmEmailRampup:
type: string
example:
warmEmailMax: '{{warmEmailMax}}'
warmEmailRampup: '{{warmEmailRampup}}'
operationId: patchLemwarmByUserMailboxIdSettings
x-operation-id-source: derived
servers:
- url: https://api.lemlist.com/api
components:
schemas:
LemwarmSettings:
type: object
description: Lemwarm configuration for a mailbox.
properties:
active:
type: boolean
dailyLimit:
type: integer
warmupTemplate:
type: string
warmDailyVarianceEnabled:
type: boolean
description: Whether a random daily variance is applied to the warmup email target
deliverability:
type: object
properties:
score:
type: integer
lastAt:
type: string
format: date-time
description: Timestamp of last deliverability check
securitySchemes:
basicAuth:
type: http
scheme: basic
x-refined-from:
- lemlist-openapi-v1-legacy.json
- lemlist-openapi-v2.json