How to extract full body content of a Bounced back email? - email

Question

The above screenshot is the sample of the Bounced Back Mail received.
I'm using the following code to extract the Body of the mail.
function test()
{
var BouncedEmails = GmailApp.search("label:test The following message was undeliverable ");
for( var i=0;i<BouncedEmails.length;i++)
{
var Gmessage = GmailApp.getMessagesForThread(BouncedEmails[i]);
for(var j=0;j<Gmessage.length;j++)
{
var body = Gmessage[j].getPlainBody();
Logger.log(body);
}
}
}
But when I am doing this, I got the following output.
As you can see the last part of the Body is missing, that is :
I also tried using :
var body = Gmessage[j].getBody();
instead of "GetPlainBody()" but the output was still the same.
On using :
var body = Gmessage[j].getRawContent();
I got this as output for the missing part, which seems to me as some sort of encoding.
So my question is, how do i extract the full content of the Bounced Back Mail?
Thank You.

Answer 1

I finally found the answer to my own question.
This has worked for me and will pretty much work for anyone on our planet.
function test()
{
var BouncedEmails = GmailApp.search("label:test The following message was undeliverable ");
for( var i=0;i<BouncedEmails.length;i++)
{
var threadId = BouncedEmails[i].getId();
var id = Session.getEffectiveUser().getEmail();
var body = Gmail.Users.Threads.get(id, threadId, {format : 'full'});
var messages = body.messages;
var payLoad = messages[0].payload.parts[2];
var string = JSON.stringify(payLoad);
Logger.log(string);
}
}
The solutions provided by #AmitAgarwal and #ShyamKansagra would also work for some cases, but which solution to use depends on what is your exact requirement.

Answer 2

Don't use Logger.log as it truncates the output after a certain number of lines. Log the output in a spreadsheet and you'll see that the full body is extracted with getPlainBody() or getBody().
I recently published a Google Script to get all bounced emails in Gmail and logs them to a Google sheet. It is open so can build upon that script.

Answer 3

I also tried using getBody(), getPlainBody() and getRawContent() methods on bounced back emails. I noticed that these methods didn't give entire body of the email i.e. the part with technical details was skipped entirely in the logs.
So, I used this following code(all credits to #Amit Agarwal), which I found in the link which Amit has shared in his answer and it gave me entire body of bounced back email.
Here is the code:
var t = "in:anywhere from:(mailer-daemon#google.com OR mailer-daemon#googlemail.com)";
GmailApp.search(t,0,500).forEach(function(t)
{
t.getMessages().forEach(function(r)
{
if(r.getFrom().indexOf("mailer-daemon")!==-1)
{
var i=r.getPlainBody();
Logger.log(i);
}
}
)
}
)
It worked for me and gave the entire content in the logs itself. Hope this helps.