Digest Not Working on MAC OS/XAMPP in Basic Configuration

Describe the problem you’re having:

Digest is not being received.

If possible include steps to reproduce the problem:

Have tried setting config.php to both system MTA and smtp.gmail.com, per directions.

tt-rss version (including git commit id):

Tiny Tiny RSS v17.12 (0cd4a88)

Platform (i.e. Linux distro, PHP, PostgreSQL, etc) versions:

MacOS 10.13.15
XAMPP for OS 7.2.5

Please provide any additional information below:

When configured as smtp.gmail.com, I receive the following pop-up message when I attempt to send an article through email:

Error sending email: SMTP connect() failed. ://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

When configured as MTA (all fields blank), I receive no error messages. An email is received in my gmail account.

In neither configuration will my digest be received. I am running update_daemon2.php. Terminal indicates no errors.

Config.php is currently configured for smtp - tls. I’ve tried ssl as well.

define(‘SMTP_FROM_NAME’, ‘Tiny Tiny RSS’);
define(‘SMTP_FROM_ADDRESS’, ‘[email protected]’);
// Name, address and subject for sending outgoing mail. This applies
// to password reset notifications, digest emails and any other mail.

define('DIGEST_SUBJECT', '[tt-rss] New headlines for last 24 hours');
// Subject line for email digests

define('SMTP_SERVER', 'smtp.gmail.com:587');
// Hostname:port combination to send outgoing mail (i.e. localhost:25). 
// Blank - use system MTA.

define('SMTP_LOGIN', '[email protected]');
define('SMTP_PASSWORD', 'xxxxxxx');
// These two options enable SMTP authentication when sending
// outgoing mail. Only used with SMTP_SERVER.

define('SMTP_SECURE', 'tls');
// Used to select a secure SMTP connection. Allowed values: ssl, tls,
// or empty.

//