Configuring External SMTP

My domain is registered through NameCheap as are two email address. The configuration for SMTP is as follows:

Server: mail.privateemail.com

Port: 465

Security: SSL

Username: email address

Password: password

I've followed the guide ~~[https://www.linode.com/docs/email/postfix/postfix-smtp-debian7" target="_blank">](https://www.linode.com/docs/email/postf … tp-debian7">https://www.linode.com/docs/email/postfix/postfix-smtp-debian7]( and still can't send mail from the server. And I can't find any error logs from postfix either, so I'm not sure what the problem is. I know this isn't much to go on, but I'm hoping someone with more experience can help. Email has become the bane to my existence at the moment. Any input would be greatly appreciated.