for a few days now almost none (about 5%) of my subscribers are actually receiving newsletters.
The emails are still sent but never arrive in the subscribers’ inboxes.
New subscribers also won’t receive the email containing the confirmation link –
I have tried it myself with multiple accounts, none will come through.
This happened even though I changed no settings in the last few weeks – thus, I have no clue as to the reason for this issue.
Any ideas are much appreciated,
thanks in advance.