I have a Wordpress site that I recently air-lifted from Hosting to Cloud (Amazon Web Services). This is on a fresh LAMP stack and everything seems to be working with the exception of sending mail.
So, two things that make me think this is Server level:
1. "Forms -> Entries" show the entires submitted from the website but they haven't been forwarded to the correct email address.
2. "Settings -> General -> Email Address" did not send the confirmation email (changing the Administrative email).
Where are places I can check to make sure that mail (specifically I believe "sendmail") is working? The maillog (e.g. sudo tail -20 /var/log/maillog-20171119) doesn't show any mail in the queue.
Thanks for your help.