FME Flow: 2024.1

Email - SMTP

The Email - SMTP trigger allows you to configure email addresses to receive messages from SMTP email clients, and send the email data to FME Flow as JSON.

The Email - SMTP trigger has two output ports. The success port () can send a message if the trigger receives successfully. The failure port (x) can send a message if the trigger fails to receive.

To use the Email - SMTP trigger, you must first make sure your FME Flow is properly configured to receive email. For more information see Configuring FME Flow to Receive Email.

Note  The Email - SMTP trigger is not supported in a fault tolerant installation of FME Flow. Consider using the Email - IMAP trigger instead.


Tip  To test that your parameters work as expected, click Validate.
  1. Email User Name:
    • To email FME Flow directly, enter the user account name to receive the email on the FME Flow host system. For example, if the FME Flow host name is services.internal, and the email address is user@services.internal, enter user.
    • To email a separate server that relays the email to FME Flow, enter the user name of the email address on the email server. For example, if the email address is, enter user.
    • Note  A rule must be configured on the email server that relays emails for the specified Email User Name on to FME Flow. The rule must specify the FME Flow machine name and SMTP port. To determine the port, see Configuring FME Flow to Receive Email.
  2. Note  Email addresses are case-insensitive.
  3. Download Attachments To: (Optional) Specify a location to download any attachments.
    • Select a Resources folder (...).
    • Enter your own location. Directory paths must use forward slashes (/) or escaped backslashes (\\).
    • If not specified, any attachments are saved to the following default temporary folder:


      If specified, the following subfolder is created in the specified location:


      If <specifiedLocation> is invalid, attachments are saved to the default temporary folder.

      If <automation_name>, <email_subject>, or <filename> contains invalid characters, these characters are stripped. Invalid characters are \/:*?\"<>|&='+%#. Whitespace characters are converted to _.

Output Attributes

See Also

Attribute Description
time Event time
source Event type

(Failure port only) Error type:

  • InvalidMessage: An error occurred while configuring this component, such as missing or malformed values.
  • DeadLetter: An error occured while connecting to an external resource. Examples may include connection issues, invalid credentials, or generic external resource exceptions.
error.message (Failure port only) Error message
email.subject (Success port only) Email subject
email.body (Success port only) Email body

(Success port only) Email attachment

Note  If the email contains multiple attachments, this attribute accesses only the first attachment. To access multiple attachments, use email.attachments instead.
email.attachments (Success port only) Path to directory containing all email attachments
email.sent (Success port only) Time sent
email.received (Success port only) Time received
email.from (Success port only) Sent from address (Success port only) Sent to address
email.contentType (Success port only) Email body content type

Email - SMTP Trigger Log Files



  • Shows some additional communication between SMTP Relay and FME Flow.


  • Shows Email Received - SMTP trigger and configuring email accounts