Hello,
We recently upgraded one of our client's website from 3.60 to 3.90 and since then we have some issue with the emailing.
The mails are marked as posted in the queue but the receiver either get them after several hours or not at all.
I checked with the email provider and the hosting provider (smarterAsp) and it doesn't seem to be an issue on their side.
We already upgraded nopCommerce websites before and we never had this problem.
Did such an issue happen before ? Do you have any idea what it could be ?