This is what I have in app.config.php ( I did not change any settings in here. Yes I can receive e-mails from this forum and other people to that e-mail, just not from my website).
# Email Settings
Config::Set('EMAIL_FROM_NAME', '');
Config::Set('EMAIL_FROM_ADDRESS', '');
Config::Set('EMAIL_USE_SMTP', false);
# Add multiple SMTP servers by separating them with ;
Config::Set('EMAIL_SMTP_SERVERS', '');
Config::Set('EMAIL_SMTP_PORT', '25');
Config::Set('EMAIL_SMTP_USE_AUTH', false);
Config::Set('EMAIL_SMTP_USER', '');
Config::Set('EMAIL_SMTP_PASS', '');
# Set specific email addresses to send notifications to
Config::Set('EMAIL_NEW_REGISTRATIONS', '');
Config::Set('EMAIL_NEW_PIREP', '');
# Whether to send an email or not
Config::Set('EMAIL_SEND_PIREP', true);
# This is email to specifically send email sent error to, such
# as failure notices with an invalid email or something
# If blank, it'll default to the "from" email that's specified
Config::Set('EMAIL_RETURN_PATH', '');