Send an automated email from a workflow.

yaml
type: "io.kestra.plugin.notifications.mail.mailsend"

Send an email on a failed flow execution.

yaml
id: unreliable_flow
namespace: company.team

tasks:
  - id: fail
    type: io.kestra.plugin.scripts.shell.Commands
    runner: PROCESS
    commands:
      - exit 1

errors:
  - id: send_email
    type: io.kestra.plugin.notifications.mail.MailSend
    from: hello@kestra.io
    to: hello@kestra.io
    username: "{{ secret('EMAIL_USERNAME') }}"
    password: "{{ secret('EMAIL_PASSWORD') }}"
    host: mail.privateemail.com
    port: 465 # or 587
    subject: "Kestra workflow failed for the flow {{flow.id}} in the namespace {{flow.namespace}}"
    htmlTextContent: "Failure alert for flow {{ flow.namespace }}.{{ flow.id }} with ID {{ execution.id }}"

SubType

Adds an attachment to the email message

The attachment will be shown in the email client as separate files available for download or display.inline if the client supports it (for example, most browsers display PDF's in a popup window).

One or more 'Cc' (carbon copy) optional recipient email address. Use semicolon as delimiter to provide several addresses.

Note that each email address must be compliant with the RFC2822 format.

SubType

Adds image data to this email that can be referred to from the email HTML body.

The provided images are assumed to be of MIME type png, jpg, or whatever the email client supports as valid image that can be embedded in HTML content.

The address of the sender of this email

The email server host

The optional email message body in HTML text

Both text and HTML can be provided; either will be offered to the email client as alternative content.Email clients that support it, will favor HTML over plain text and ignore the text body completely.

The email server password

The optional email message body in plain text

The email server port

Default 10000

Integer value in milliseconds. Default is 10000 milliseconds, i.e. 10 seconds

It controls the maximum timeout value when sending emails.

The optional subject of this email

Email address(es) of the recipient(s). Use semicolon as delimiter to provide several email addresses.

Note that each email address must be compliant with the RFC2822 format.

Default SMTPS

Possible Values

SMTPSMTPSSMTP_TLSSMTP_OAUTH2

The optional transport strategy

Will default to SMTPS if left empty

The email server username

The name of the attachment (eg. 'filename.txt')

An attachment URI from Kestra internal storage

Default application/octet-stream

One or more 'Cc' (carbon copy) optional recipient email address(es). Use semicolon as a delimiter to provide several addresses

Note that each email address must be compliant with the RFC2822 format