I currently have two sites I'm working on right now which utilize the built in email module. I can fill the form out, hit submit and I get a message saying it's been sent, but it never gets sent. I can also use the communicate field, and again, nothing gets sent although I get confirmation that it did indeed send.
While trouble shooting I've come across the suggestion that I check the database table called "exp_postmaster_mailbox" and I wonder if I may have found my issue - there is no "exp_postmaster_mailbox" in my database.
Is this a corrupt install? It doesn't work live or local. It also doesn't matter whether I use phpmail, sendgrid, or smtp. None send all, all give confirmation that it sent out.