I have Love Story theme and trying to send messages from user to user. I installed also “WP Mail SMTP” plug-in and configured it to use my hosting provider’s email account. The messages are delivered, but there is a huge delay, about 2 or 3 minutes. Even the sender doesn’t see the sent message immediately in his/her own list. This is very confusing for the users, because they think the message was not sent at all.