Attachments

Our programmatic email API supports attachments via multipart/form-data requests.

Please note the following rules when sending attachments:

• The attachment feature is only available to users who have configured custom domain. If you'd like to configure the emails to send from your own domain, contact us.

• Each email can have up to 10 attachments

• Each attachment should not exceed 2MB in size

• The cumulative size of all attachments should not exceed 10MB

• You can file the list of supported attachment file types below

List of supported attachment file types

• asc

• avi

• bmp

• csv

• dgn

• docx

• dwf

• dwg

• dxf

• ent

• gif

• jpeg

• jpg

• mpeg

• mpg

• mpp

• odb

• odf

• odg

• ods

• pdf

• png

• pptx

• rtf

• sxc

• sxd

• sxi

• sxw

• tif

• tiff

• txt

• wmv

• xlsx

Sample API calls

API call with one attachment

curl --location --request POST 'https://api.postman.gov.sg/v1/transactional/email/send' \
--header 'Authorization: Bearer your_api_key' \
--form 'body="<p>Hello <b>there</b></p>"' \
--form 'recipient="[email protected]"' \
--form 'attachments=@"/your/local/path-to-file"' \
--form 'subject="Test email"'

API call with two attachments

curl --location --request POST 'https://api.postman.gov.sg/v1/transactional/email/send' \
--header 'Authorization: Bearer your_api_key' \
--form 'body="<p>Hello <b>there</b></p>"' \
--form 'recipient="[email protected]"' \
--form 'attachments=@"/your/local/path-to-file-1"' \
--form 'attachments=@"/your/local/path-to-file-2"' \
--form 'subject="Test email"'