When an email can't be transferred to Amazon SES on the first attempt, Sendy will retry the transfer once again. If the email can't be transferred to Amazon SES after the second attempt, it will be logged into the "x not delivered" CSV.
Found another related issue: I download the emails which were "not delivered" and found they are the same email repeated 39 times (the other repeated 18 times).
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Hi @ilsh,
When you get "x not delivered",
When an email can't be transferred to Amazon SES on the first attempt, Sendy will retry the transfer once again. If the email can't be transferred to Amazon SES after the second attempt, it will be logged into the "x not delivered" CSV.
Best regards,
Ben
Thanks, Ben. Do you think the failure of transfer might be due to two campaigns were being sent at the same time?
Found another related issue: I download the emails which were "not delivered" and found they are the same email repeated 39 times (the other repeated 18 times).
You're welcome. These emails are most probably in Amazon SES's suppression list that is why they rejected it.