Could Not Send Test Email! Errors?

I’m trying to send a test email and its giving me these errors:

The only thing I noticed is that it keeps saying “admin@domain.com” which is how my blog was automatically set up by my hosting software, but I’ve manually changed it in general settings, and in multiple places across the plugin yet it’s still saying “admin@domain.com” why is that? Is that the problem? How can I change it?

An error occured. Show more details.
Error Sending Message SMTP works with Wysija to admin@domain.com | SMTP Error: Could not connect to SMTP host. |
PHP Error Message

Warning: fsockopen() [function.fsockopen]: unable to connect to smtp.mandrillapp.com:587 (Connection timed out) in /...public_html/wp-content/plugins/wysija-newsletters/inc/phpmailer/class.smtp.php on line 123

Error Sending Message SMTP works with Wysija to admin@domain.com | SMTP Error: Could not connect to SMTP host. |
PHP Error Message

Warning: fsockopen() [function.fsockopen]: unable to connect to smtp.mandrillapp.com:587 (Connection timed out) in /...public_html/wp-content/plugins/wysija-newsletters/inc/phpmailer/class.smtp.php on line 123

https://wordpress.org/plugins/wysija-newsletters/