Phabricator not sending emails

I've gotten Phabricator running, but I'm not receiving emails from the UI. What I've tried so far:

• Using PHPMailer - I get the test email using ./bin/mail send-test, but when I send the user welcome email through the UI, nothing gets sent out
• Using Mailgun - I also get the test email using ./bin/mail send-test, and the Mailgun interface shows emails delivered. However no email gets sent when requested through the interface
• I see emails in list-outbound

At this point I'm thinking Phabricator is using different settings for the send-test vs. the UI. Any pointers?

Fixed it with a restart. Seems like a number of settings in Phabricator need restarts, but unfortunately the UI doesn't make that clear.