New interested parties subscribe to the newsletter. Normally, the tool now sends an e-mail to receive the confirmation from the user.
This works for some e-mail addresses, but not for all. You will not receive an email to confirm. Why is that?
Hi, is some emails are not sent, it’s usually not a problem in the plugin, since all welcome emails are sent, could be a problem of the provider.
How did you verify that not all emails are sent? It could be useful to find out where the problem originates.