Fax SMTP – Getting Status

This page explains how to view the status of faxes sent via our SMTP fax interface. The email interface does not directly enable viewing the status of your outgoing fax queue. However, a variety of methods exists to enable confirmation of faxing activity.

Web-based Account Management

Your SMTP faxing activity, whether initiated from a programmatic email interface, from the Interfax Web Service, or any other way, will always be visible by logging into your account.

After logging in, go to Fax Queues | Outbound Queue to view all of your outbound faxes.

Confirmation Email

You may elect to receive a confirmation email to report the completion of outgoing faxes. You may indicate which events will trigger such notification: Success, Failure, Both, or None.

Configuration of this setting is performed through your account. After logging in, go to by Preferences | Outgoing and choose your requested Feedback When parameter.

The format of the confirmation email can be one of several options:

  1. Plain text – the confirmation email will not include an HTML-formatted portion.
  2. HTML – Local Language – HTML-formatted in the language of your Interfax account.
  3. HTML- English – HTML-formatted in English, regardless of the language of your Interfax account.
  4. XML – the confirmation parameters are returned in an XML structure.
  5. CSV – the confirmation parameters are returned in a comma-delimited file, one line per transaction; this format is useful for reading in MS Excel.

Configuration of this the confirmation format is performed through your account. After logging in, go to by Preferences | Outgoing and choose your requested Feedback Format parameter.

Confirmations, if enabled, will be sent to the original sender’s “From:” address, unless a “Reply-To:” address is available, in which case it will be used.

If you send SMTP faxes to several destinations at once, by entering more than one address into the “To:” field, you will not receive confirmations for every single recipient.  Instead, you will receive a single email, detailing the outcome of transmission to all destinations. The email will be sent upon completion of all transmissions. The format of this email (plain text, HTML, CSV, etc.) will conform your setting as described above.

Interfax Web Service

The Interfax Web Service may be used to programatically retrieve information about outgoing faxes. Please see the appropriate section for more details.