How to BCC all emails in Amazon WorkMail

Hi,

How are you adding the recipient to the email? The correct way to do this would be using a synchronous lambda where you add a recipient by returning something like this: (From Docs)

The following example demonstrates the structure of a synchronous Run Lambda response for adding recipients to the email message. This does not update the To or CC fields of the email message.

{
    "actions": [
      {
        "action": { 
          "type": "DEFAULT" 
        },
        "recipients": [
          "new-recipient@example.com"
         ]
      },
      {
        "action": { 
          "type": "DEFAULT" 
        },
        "allRecipients": true
      }
    ]
}

Kind regards, Robin

Hi Robin, I finally got it to work. I created my Lambda function with the following code and created an Organization Inbound rule calling Synchronous Lambda function. This also works for the same with Outbound rule. Code is slightly different for outbound.

try:

    # workmail = boto3.client('workmailmessageflow', region_name='us-west-2')
    mailBcc = ['bcc@email.com']
    recipients = event['envelope']['recipients']
    
    to_addr = 'from@email.com'
    
    for item in recipients:
        if to_addr in item.values():
            
            return {
                'actions': [
                {
                    'action': { 'type': 'DEFAULT' },
                    'recipients': mailBcc
                },
                {
                    'action': { 'type': 'DEFAULT' },
                    'allRecipients': True
                }
            ]}        
    
except Exception as e:
    print(e)
    raise e

return {
    'actions': [
    {
        'allRecipients': True,
        'action': { 'type': 'DEFAULT' }