Hello,
Last 9th of September we sent a message called "". The email was sent to 54 contacts and two of them, have written us back to say they never received the message altough they are in the list of "SENTS".
Can you please help to try to know what could have happened? Is that possible? They have both revised their spam folders and nothing there.
Many thanks in advance,
Kind regards,
Alhelí.
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