On Tue, 8 Aug 2017 08:00:04 -0500
David Jones <djo...@ena.com> wrote:

> I absolutely agree but it's possible that this part is out of his 
> control.  Sendgrid might be receiving a plain text email from the
> normal source and adding HTML to get that image in there for
> tracking.

If you can't determine the content of your own messages, time to find
another provider, I think.  Surely Sendgrid lets you control this sort
of thing?



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