Customers Receives Twice Email

Dear Support,

Kindly, help us! we start using PHP recently and it is great website but we have small issue while we are sending the campaign the receiver get two emails in every time
Can you tell us how to let it sent only one email not two at the same time


You’ll probably have to look at the headers on the two emails, and make sure they are different.
I haven’t heard of the system sending two emails from one campaign to the same email address, in fact phpList is specifically designed to NOT do this…

It could be that there is a configuration error on the mail server side of the system, and you are having timeout issues when the mail server tries to send, and then it retries.