I just installed a fresh copy of dovecot on my VPS. I am also running postfix, and I first went through this guide I followed everything as explained. However when I try to send an email from my iPhone I'm getting the following error,
postfix/smtpd[5017]: warning: SASL: Connect to private/auth failed: Permission denied
The dovecot configuration file, https://ghostbin.com/paste/c9he3