I no longer get a reason for delivery failure; caused by Gmail or by end-user's email?

[APB]

I have occasion to send big files (4 - 7 MB) to about 20 people, from another of my Gmail accounts.

It used to be that the failed message would be shown -- which allowed me to figure out what the problem was -- but no more.

This is what I get:

From: Mail Delivery Subsystem <mailer...@googlemail.com>
Date: Sat, Sep 17, 2016 at 6:10 PM
Subject: Delivery Status Notification (Failure)
To: my_other...@gmail.com

Delivery to the following recipient failed permanently:

     so_a...@earthlink.net

Technical details of permanent failure:
write error: generic::failed_precondition: write error (0): error

----- Original message -----

That's it; there's nothing below the Original message line any more, where I used to see the whole of my sent message.

I checked Show Original, but (not surprisingly) there's no more info there than in the message as I see it in my Inbox.

(Luckily, I know from having encountered it in the past that Earthlink and Mindspring accounts will fail my messages that include big files.)

So my question today is: Is it Gmail which is no longer including the Original message, or is it Earthlink / Mindspring?  (In any case, it's not very helpful.)

Thanks in advance for your insights--

-- APBARRY

[Andy]

On Sat, Sep 17, 2016 at 7:00 PM, APB <apb...@gmail.com> wrote:

I have occasion to send big files (4 - 7 MB) to about 20 people, from another of my Gmail accounts. 

It used to be that the failed message would be shown -- which allowed me to figure out what the problem was -- but no more.

​FYI, I just started seeing email rejections too, because Google thinks my message is a "bulk" message (even though sent to one person) and contains spam.  It has an attachment, a 400KB PDF file created from Microsoft Word, and there isn't any spam about its contents.  I have sent the same file previously from Gmail (and from Google Apps), without problems, so this is a recent change.  The rejection was on my end, not the recipient's end.  My message never left Google.

The bounce message I got did not include the attached file, which is the part that caused the rejection.  And it did include a link to a Google page that talks about bulk messages and about false spam detection.

Andy

[Marko Vukovic]

On Sun, Sep 18, 2016 at 1:00 AM, APB <apb...@gmail.com> wrote:

I have occasion to send big files (4 - 7 MB) to about 20 people, from another of my Gmail accounts.

​This is not an answer to your question but might I suggest you attach those files as Google Drive links instead? In that way, there is no change of the mail being bounced because of size.

​​

--

Marko