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Attaching an ics (event) file with text/Calendar mime type - help?

  1. Hi,

    I'm tying to attach a .ics file to an admin notification email. I can do this fine in that when the email arrives it has the file attached. However it doesn't behave the same way that an invitation from GCal/Outlook/iCal would, i.e. letting you add the invitation/appointment to your calendar directly from the mail client.

    It looks like the reason is down to the 'Content-Type' in the email. When I send one from GCal/Outlook/iCal that works fine, this is what I see in the bottom of the email source:

    --[mesage id here]
    Content-Type: text/calendar; charset="utf-8"; method=REQUEST
    Content-Transfer-Encoding: base64
    
    [encoded string here]

    When I attach a file with this code:

    add_filter("gform_admin_notification_attachments_4", "add_attachment", 10, 3);
    function add_attachment($attachments, $lead, $form){
    	$doc = '/invite.ics';
    	$upload = wp_upload_dir();
        $upload_path = $upload["basedir"];
        $attachments = array();
        $attachments[] = $upload_path . $doc;
        return $attachments;
    }

    I get this in the email:

    --[mesage id here]
    Content-Type: application/octet-stream; name="invite.ics"
    Content-Transfer-Encoding: base64
    Content-Disposition: attachment; filename="invite.ics"
    
    [encoded string here]

    Any ideas how I can enforce the correct content type so the mail clients know how to handle it?

    Thanks,
    Ben

    Posted 7 years ago on Wednesday December 19, 2012 | Permalink
  2. The only option for email notification format in Gravity Forms is HTML or text which can be controlled by the gform_notification_format.

    http://www.gravityhelp.com/documentation/page/Gform_notification_format

    To have complete control over the email notification format, you might have to craft your own notification with the proper Content-type, using phpmailer. Here is how one person did it:

    http://www.gravityhelp.com/forums/topic/send-from-field-on-notification-setting-page-doesnt-work#post-77233

    You could turn off the default admin notification, and use the gform_after_submission hook to send your own notification.

    http://www.gravityhelp.com/documentation/page/Gform_after_submission

    Posted 7 years ago on Thursday December 20, 2012 | Permalink