Envelope From Address Rewriting

With the Envelope-From Address Rewriting service you are able to rewrite the Envelope-From address of each email during the processing. Reasons for rewriting are that the customer's company policy does not allow the use of the customer's own domain for sending emails, to private persons for example, during a merge and acquisition process or because of security concerns the customer wants to protect his domain and therefore his company network against attacks.

This service is used to do automatic rewriting for outbound email addresses (recipient and/or domain part). Technically, this service rewrites the Envelope-To from-address of emails based on a mapping list provided by the customer. The mapping file has to contain full email addresses (domain only is not possible) and have the following structure (whitespaces are eliminated automatically when processing the file):

JSON

{
   "from":{
      "address":"local-part@sender-domain.com"
   },
   "rewriteFrom":{
      "address":"local-part@customer-rewrite-domain.com"
   }
}

We also offer the option of Bounce and Response Manager. This is used to manage all email replies that you have received via the Envelope-From address managed by Retarus. The service may automatically process the reply and forward the message if the message requires personal review.

If you’d like to use this service, please contact Retarus for details and activation.

Push Notification samples

To make this service visible as possible Retarus will provide additional information for this service within the push notification.

JSON

{
   "meta":{
      "account":"m4a_test_user",
      "customerNo":"99999",
      "tenant":"Test User",
      "receivedTs":"2020-10-16T05:54:11.043Z",
      "jobId":"rcpt-632cdc56-6480-406b-8faf-5a7e70876d0c",
      "version":"1"
   },
   "notifications":[
      {
         "meta":{
            "tag":"a813f47bca9ded6b0305885e235c073e886168b8b63eb5e99d02d00bcc7a6371",
            "mail":{
               "id":"rcpt-632cdc56-6480-406b-8faf-5a7e70876d0c",
               "email":"recipient <recipient@sample.com>",
               "from":"sender@sample.com",
               "mimeFrom":"sender@sample.com",
               "rewriteFrom":"sender@rewrite-sample.com"
            },
            "event":{
               "type":"DELIVERED",
               "phase":"DELIVER",
               "state":"FINISHED",
               "subType ":"OK",
               "ts":"2020-10-16T05:54:18.000Z",
               "description":"mail delivered"
            }
         },
         "content":{
            "mime":{
               "messageId":"<20201016-…54463a38@retarus.com>",
               "size":"884"
            },
            "smtp":{
               "responseCode":"250",
               "reason":"sent (250 2.0.0 Ok: queued as 3yFnZW2mNlzPk9y)",
               "relay":"mailin4.rmx.de[82.135.18.227]:25",
               "dsn":"2.0.0",
               "transportEncryption":{
                  "requested":true,
                  "established":true,
                  "properties":{
                     "protocol":"TLS1.2",
                     "cipherSuite":"example-cipher-suite"
                  }
               }
            }
         }
      }
   ]
}