Not reluctant at all - nobody asked and I thought I had covered the relevant differences.
The simple email consists of three recipients, a subject line and text of "This is a test" type of thing. I will gladly show the php script if you think it would help.
The one that goes missing is a more conventional "Thanks you for registering for our conference ... here's the details" etc. I _think_ it is an HTML formatted mail but am trying to clarify that now - I didn't write the script.
My original thinking was that they must be kicking it as spam but it doesn't show in the filter and there's no bounce message.
On 2014-06-23, at 3:39 PM, John Yeung <gallium.arsenide@xxxxxxxxx> wrote:
The obvious question which you seem to be extremely reluctant to
answer (based on how little you volunteered over several posts) is:
What constitutes "simple" e-mail, and how is that different than the
e-mail that is failing?
Have you been able to send the "not simple" e-mail to other recipients?
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