The Schedule Campaign API allows you to schedule an existing Email Campaign for delivery to Subscriber Lists or saved Segments.

Available API Functions

Method	Endpoint	Description
POST	`/scheduleCampaign`	Schedule an Email Campaign
GET	`/getScheduledCampaign`	Retrieve one scheduled campaign
GET	`/getScheduledCampaigns`	Retrieve scheduled campaigns

Schedule Campaign

Endpoint

POST /scheduleCampaign

Parameters

Parameter	Required	Description
`campaign_label`	Yes	Internal name for the scheduled campaign
`list_type`	Yes	`1` = Subscriber Lists, `2` = Segments
`list_id_fk[]`	Conditional	Subscriber List IDs when `list_type=1`
`segment_id_fk[]`	Conditional	Segment IDs when `list_type=2`
`email_campaign_id_fk[]`	Yes	Email Campaign ID(s)
`smtp_list[]`	Yes	SMTP username(s) to use for sending
`campaign_type`	No	Use `1` for a normal Email Campaign
`smtp_sequence`	No	`1` = Batches, `2` = Loop
`sender_info`	No	Sender information source
`sch_fromname`	No	From Name
`sch_fromemail`	Recommended	From Email
`sch_bounceemail`	Recommended	Bounce Email
`sch_replyemail`	Recommended	Reply-To Email
`sch_datetime`	Recommended	UTC Time to send the email campaign
`notification_email`	No	Campaign notification email
`show_unsub`	No	`1` to enable unsubscribe functionality
`track_open`	No	`1` to enable open tracking
`track_click`	No	`1` to enable click tracking
`no_of_threads`	No	Number of sending threads
`hourly_limit`	No	Hourly sending limit
`masked_domain`	No	Domain masking option

SMTP Accounts

Use smtp_list[] to specify the SMTP username to use for sending. SMTP username can be fetched from API endpoint /getSMTPs

Single SMTP

smtp_list[]=smtp-user-1

Multiple SMTP Accounts

smtp_list[]=smtp-user-1
smtp_list[]=smtp-user-2
smtp_list[]=smtp-user-3

Each SMTP username must be valid and available to your account.

SMTP Sequence

When multiple SMTP accounts are selected, smtp_sequence controls the sending sequence.

Value	Mode
`1`	Batches
`2`	Loop

Example:

smtp_sequence=1

Subscriber Lists

To send to Subscriber Lists:

list_type=1

Provide one or more List IDs:

list_id_fk[]=10
list_id_fk[]=12

Segments

To send to saved Segments:

list_type=2

Provide one or more Segment IDs:

segment_id_fk[]=15
segment_id_fk[]=20

Email Campaign

Specify the Email Campaign using:

email_campaign_id_fk[]=125

The campaign must already exist before it can be scheduled.

Send Campaign Now

If no future schedule date and time are supplied, the campaign is scheduled for immediate delivery.

curl -X POST "https://YOUR-DOMAIN/API-PATH/scheduleCampaign" \
  -d "campaign_label=September Newsletter" \
  -d "list_type=1" \
  -d "list_id_fk[]=10" \
  -d "email_campaign_id_fk[]=125" \
  -d "smtp_list[]=smtp-user-1" \
  -d "campaign_type=1" \
  -d "smtp_sequence=1" \
  -d "sender_info=3" \
  -d "sch_fromname=My Company" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "show_unsub=1" \
  -d "track_open=1" \
  -d "track_click=1"

Schedule Campaign for Later

Use sch_date and sch_time to schedule delivery for a future date and time.

sch_date=09/28/2026
sch_time=10:00:00 AM

Example:

curl -X POST "https://YOUR-DOMAIN/API-PATH/scheduleCampaign" \
  -d "campaign_label=Monday Newsletter" \
  -d "list_type=1" \
  -d "list_id_fk[]=10" \
  -d "email_campaign_id_fk[]=125" \
  -d "smtp_list[]=smtp-user-1" \
  -d "campaign_type=1" \
  -d "smtp_sequence=1" \
  -d "sch_date=09/28/2026" \
  -d "sch_time=10:00:00 AM" \
  -d "sender_info=3" \
  -d "sch_fromname=My Company" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "show_unsub=1" \
  -d "track_open=1" \
  -d "track_click=1"

A combined schedule date/time may also be supplied:

sch_datetime=2026-09-28 10:00:00

Schedule Campaign to a Segment

curl -X POST "https://YOUR-DOMAIN/API-PATH/scheduleCampaign" \
  -d "campaign_label=Engaged Subscribers" \
  -d "list_type=2" \
  -d "segment_id_fk[]=15" \
  -d "email_campaign_id_fk[]=125" \
  -d "smtp_list[]=smtp-user-1" \
  -d "campaign_type=1" \
  -d "smtp_sequence=1" \
  -d "sender_info=3" \
  -d "sch_fromname=My Company" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "show_unsub=1" \
  -d "track_open=1" \
  -d "track_click=1"

Multiple SMTP Accounts

Multiple SMTP usernames can be supplied:

curl -X POST "https://YOUR-DOMAIN/API-PATH/scheduleCampaign" \
  -d "campaign_label=Multi SMTP Campaign" \
  -d "list_type=1" \
  -d "list_id_fk[]=10" \
  -d "email_campaign_id_fk[]=125" \
  -d "smtp_list[]=smtp-user-1" \
  -d "smtp_list[]=smtp-user-2" \
  -d "smtp_list[]=smtp-user-3" \
  -d "smtp_sequence=2" \
  -d "sender_info=3" \
  -d "sch_fromname=My Company" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "[email protected]"

Sender Information

The sender_info parameter controls the source of sender information.

Value	Source
`1`	Subscriber List
`2`	SMTP Account
`3`	Custom Sender Information

For custom sender information:

sender_info=3
sch_fromname=My Company
[email protected]
[email protected]
[email protected]

Tracking Options

Enable unsubscribe, open tracking, and click tracking:

show_unsub=1
track_open=1
track_click=1

Use 0 to disable the corresponding option.

Hourly Sending Limit

Example:

hourly_limit=5000

For the default unlimited setting:

hourly_limit=-1

Sending Threads

Example:

no_of_threads=5

The availability of multiple sending threads depends on your account and installation configuration.

Domain Masking

`masked_domain`	Description
`0`	Do not mask
`1`	Use SMTP domain
`2`	Use custom masking domain

Example:

masked_domain=1

For a custom masking domain:

masked_domain=2
mask_domain_id_fk[]=5

Recipient Filtering

Recipient filters can be used when scheduling to Subscriber Lists (list_type=1).

Subscriber Name

Value	Description
`0`	All Subscribers
`1`	With First Name
`2`	With Last Name
`3`	With First and Last Name
`4`	Without First Name
`5`	Without Last Name
`6`	Without First and Last Name
`7`	With First Name or Last Name
`8`	Without First Name or Last Name

Example:

subscriber_name=3

Email Address

Include email addresses containing:

email_contains=gmail.com

Exclude email addresses containing:

email_dont_contains=example.com

Open Status

Value	Description
`0`	All
`1`	Opened
`2`	Unopened

Example:

opened=1

Additional open filters:

opened_country[]=United States
opened_after_date=09/01/2026
opened_after_time=00:00:00
opened_before_date=09/30/2026
opened_before_time=23:59:59

Click Status

Value	Description
`0`	All
`1`	Clicked
`2`	Unclicked

Example:

clicked=1

Additional click filters:

clicked_country[]=United States
clicked_after_date=09/01/2026
clicked_after_time=00:00:00
clicked_before_date=09/30/2026
clicked_before_time=23:59:59

Successful Response

Example:

{
  "success": true,
  "Schedule Campaign ID": 250,
  "Total": 15420,
  "Schedule DateTime": "2026-09-28 05:00:00"
}

Get Scheduled Campaign

Endpoint

GET /getScheduledCampaign

Parameters

Parameter	Required	Description
`schedule_campaign_id`	Yes	Schedule Campaign ID

Example:

curl -X GET \
"https://YOUR-DOMAIN/API-PATH/getScheduledCampaign?schedule_campaign_id=250"

The API returns the details of the requested scheduled campaign.

Get Scheduled Campaigns

Endpoint

GET /getScheduledCampaigns

Parameters

Parameter	Required	Default	Description
`start`	No	`0`	Starting record
`records`	No	`100`	Number of records
`status`	No	—	Filter by campaign status
`search`	No	—	Search campaign label
`campaign_type`	No	—	Filter by campaign type
`list_type`	No	—	`1` = Lists, `2` = Segments

Example:

curl -X GET \
"https://YOUR-DOMAIN/API-PATH/getScheduledCampaigns?start=0&records=100"

Search:

GET /getScheduledCampaigns?search=Newsletter

Subscriber List campaigns:

GET /getScheduledCampaigns?list_type=1

Segment campaigns:

GET /getScheduledCampaigns?list_type=2

Error Responses

Possible errors include:

campaign_label is required
smtp_list is required
email_campaign_id_fk is required
list_id_fk is required when list_type=1
segment_id_fk is required when list_type=2
list_type must be 1 (subscriber lists) or 2 (segments)
One or more mailing lists are invalid or access denied
One or more segments are invalid or access denied
One or more email campaigns are invalid or access denied
SMTP account not found, disabled or access denied
Invalid campaign schedule date/time

Complete Example

curl -X POST "https://YOUR-DOMAIN/API-PATH/scheduleCampaign" \
  -d "campaign_label=September Customer Newsletter" \
  -d "list_type=1" \
  -d "list_id_fk[]=10" \
  -d "list_id_fk[]=12" \
  -d "email_campaign_id_fk[]=125" \
  -d "smtp_list[]=smtp-user-1" \
  -d "smtp_list[]=smtp-user-2" \
  -d "campaign_type=1" \
  -d "smtp_sequence=1" \
  -d "masked_domain=1" \
  -d "no_of_threads=5" \
  -d "hourly_limit=5000" \
  -d "sender_info=3" \
  -d "sch_fromname=My Company" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "[email protected]" \
  -d "show_unsub=1" \
  -d "track_open=1" \
  -d "track_click=1" \
  -d "sch_date=09/28/2026" \
  -d "sch_time=10:00:00 AM"

Example response:

{
  "success": true,
  "Schedule Campaign ID": 250,
  "Total": 15420,
  "Schedule DateTime": "2026-09-28 05:00:00"
}

Typical Workflow

1. Create Email Campaign
        ↓
POST /addCampaign

2. Receive Campaign ID
        ↓
Campaign ID: 125

3. Schedule Campaign
        ↓
POST /scheduleCampaign

4. Select Recipients
        ↓
list_type=1
list_id_fk[]=10

        OR

list_type=2
segment_id_fk[]=15

5. Select Email Campaign
        ↓
email_campaign_id_fk[]=125

6. Select SMTP Account(s)
        ↓
smtp_list[]=smtp-user-1

7. Configure sender, tracking and schedule
        ↓
Campaign Scheduled

Important Notes

Creating an Email Campaign does not automatically schedule or send it.

First create the campaign:

POST /addCampaign

Then schedule it:

POST /scheduleCampaign

For Subscriber Lists:

list_type=1
list_id_fk[]=10

For Segments:

list_type=2
segment_id_fk[]=15

For SMTP accounts:

smtp_list[]=smtp-user-1

Multiple SMTP accounts can be supplied by repeating smtp_list[].

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