Customizing the Mailer Adapter

The mailer adapter is what emails data submitted through a form to a specified recipient. Setting the various options of the mailer adapter will allow you to customize these emails.

When editing the the Mailer Adapter, you will see several tabs across the top of the page (see image below). Customizing these various options allows you to configure the mailer adapter to better suit your needs.



Specify Who Will Receive the Form Submission Emails

You'll need to specify who will receive the data when a form is submitted

  1. Edit the Mailer adapter and ensure you are on the Default tab
  2. List the name of the recipient in the Recipient's Full Name field.
  3. List the recipients email address in the Recipient's E-mail Address field.
  4. If you wish a copy of the form to be sent to additional recipients you can enter their email address under the Addressing tab. You can add as many CC Recipients and BCC Recipients e-mails as you like, just separate them with commas.


Customize the 'From' Address

By default, your form will use as the 'From' address when it sends emails. If you'd like to change this to a different email address, edit your Mailer Adapter and select the Overrides tab. In the Sender Expression field, paste the following line of code:


Substitute the desired 'From' email address in place of your@email.address.


Default Subject Line

By default, your form will use the Subject field (included in the default form) as the Subject line when it sends emails. If you've deleted the Subject field, the default Subject line will be Form Submission.


Create a Custom Subject Line

You can also specify a static (unchanging) subject line, such as “Request For Information,” "Thank you for registering" or “Web Site Feedback.” The recipient of the form submissions will see this same subject line for every email that is generated by the form. To set a custom subject line

  1. Delete the Subject input field that comes by default with all forms
  2. Edit your Mailer Adapter and select the Message tab.
  3. In the Subject field, enter the desired Subject line.
  4. Select None from the Extract Subject From field.
  5. Save at the bottom of the page.

Add Mailer Adapter - Subject


Use a Field as a Custom Subject Line

Alternatively, you may extract a subject from an existing field in the form. You would use this, for example, if you wanted the subject line of every email generated by the form to be the name of the person submitting the form. Another example is if the user is selecting a certain workshop from a list on your form, the title of the workshop could be used as the Subject line, as a reminder of which workshop they registered for (e.g., "Participatory Research Approaches Workshop").

  1. Edit your Mailer Adapter and select the Message tab.
  2. Under Extract Subject From, choose the desired field.
  3. Save at the bottom of the page.

Subject Extract


Use a Field Combined with Static Text for a Custom Subject Line

You can also combine some static text with dynamic content from an existing field as the email subject line. In the Overrides tab of the Mailer adapter, paste the following line of code into the Subject Expression field:

    1. Edit your Mailer Adapter and select the Overrides tab.
    2. Under Subject Expression, paste the following line of code:
python:'Web Site Feedback From ' + request.get('my-field-id', 'default-value')
  1. Change 'Web Site Feedback From' to your desired string of text. Note that you should retain a space at the end of the phrase, if you wish for there to be a space between your custom text and the dynamic text.
  2. Set 'my-field-id' to the Short Name of the field from which you want to extract dynamic content
  3. Change 'default-value' to some text of your choosing that will be used if no input is given for the 'my-field-id' field. If you used a Name field as the dynamic component then the subject line would then read 'Web Site Feedback From Michael Smith'. If a user submitted a form without filling out the Name field and you set the default-value as 'Friend', then the subject line would then read 'Web Site Feedback From Friend'.
  4. Save at the bottom of the page.


Customized Redirect after Submission

The Overrides tab of a form folder (see image below) holds coded instructions for actions the form can perform upon submission. The most common action to add to a form is a customized redirect.

Form Overrides

By default, when a user finishes filling out your form and submits it, they are redirected to a "Thank You" page, with a confirmation of their form responses, and little else. You may wish to redirect them elsewhere, instead (ex., your homepage).

    1. Edit the form folder and select the Overrides tab
    2. In the Custom Success Action field, paste the following line of code:
  1. Substitute the desired web address in place of


Send an Email to the Form Submitter

By default, the Mailer Adapter will only send email to the email address(es) that you specified when setting up the mailer adapter (see above). However, a second mailer adapter can be added so a courtesy copy of the form can also be sent to the person submitting the form.  In order for this to work you must have a field on your form requesting the email address of the person filling out the form. By default, when you create a new Form Folder, an email field with the short name of replyto is automatically included. If you rename this field, be sure to take note of the new short name. You will need this information to set up the mailer adapter.

Icon Idea If you have deleted the E-Mail Address field, re-add one now:

  1. Select add new... -> string field.
  2. In the Field Label field, type E-Mail Address (or any other text indicating that this field requires an email address).
  3. From the options you see below, put a check next to Required, and select Is an E-Mail Address from the Validator field.
  4. Save at the bottom of the page.
  5. Rename the short name of your E-Mail Address field to replyto
  1. Add a Mailer Adapter to the form folder.
  2. Edit the Mailer Adapter and click on the Overrides tab.
  3. Paste the following code into the Recipient Expression field:
  4. If the email field on your form has a short name other than replyto, you will need to modify the above code to reflect the short name that you assigned.