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PUT
/
senders
/
{id}
Update a sender
curl --request PUT \
  --url https://api.sendkit.dev/senders/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Jane Doe",
  "username": "jane",
  "domain_id": "550e8400-e29b-41d4-a716-446655440000",
  "reply_to": "reply@yourdomain.com"
}
'
{
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "name": "John Doe",
  "username": "john",
  "email": "john@yourdomain.com",
  "reply_to": "reply@yourdomain.com",
  "domain": {
    "id": "550e8400-e29b-41d4-a716-446655440000",
    "name": "yourdomain.com",
    "status": "verified",
    "region": "us-east-2",
    "open_tracking": true,
    "click_tracking": true,
    "tls": "opportunistic",
    "sending_enabled": true,
    "created_at": "2026-03-03 10:00:00",
    "updated_at": "2026-03-03 10:00:00"
  },
  "created_at": "2026-03-03 10:00:00",
  "updated_at": "2026-03-03 10:00:00"
}

Documentation Index

Fetch the complete documentation index at: https://docs.sendkit.dev/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

API key from your SendKit dashboard. Pass it as a Bearer token in the Authorization header.

Path Parameters

​
id
string<uuid>
required

The sender ID.

Body

application/json
​
name
string

The sender display name.

Maximum string length: 255
Example:

"Jane Doe"

​
username
string

The username part of the email address. Must be unique per domain.

Maximum string length: 64
Example:

"jane"

​
domain_id
string<uuid>

The ID of a verified domain that belongs to your account.

Example:

"550e8400-e29b-41d4-a716-446655440000"

​
reply_to
string<email> | null

The reply-to email address.

Maximum string length: 255
Example:

"reply@yourdomain.com"

Response

Sender updated successfully

​
id
string<uuid>

Unique identifier.

Example:

"550e8400-e29b-41d4-a716-446655440000"

​
name
string

The sender display name.

Example:

"John Doe"

​
username
string

The username part of the sender email address.

Example:

"john"

​
email
string<email>

The full sender email address (computed from username and domain).

Example:

"john@yourdomain.com"

​
reply_to
string<email> | null

The reply-to email address.

Example:

"reply@yourdomain.com"

​
domain
object

The domain associated with this sender (without DNS records).

​
created_at
string<date-time>

When the sender was created.

Example:

"2026-03-03 10:00:00"

​
updated_at
string<date-time>

When the sender was last updated.

Example:

"2026-03-03 10:00:00"