Where do I find my SMTP credentials?

After you create a Mandrill account, get your SMTP credentials on the SMTP & API Info page in your account.

The SMTP password is any active API key for your account, not the password used to log in to Mandrill. The credentials list port 587, but any port supported by Mandrill will work, and there's no configuration change needed within Mandrill to activate one of the alternate ports.