I have purchased a Comodo EssentialSSL which protects one URL so I added www.domain.com.au (which auto includes domain.com.au)
Ok - no problems.
Client wanted to use SSL for email though and as the certificate was installed only on A record and www CNAME, setting the server to domain.com.au was a possible solution BUT it was proxied through Cloudflare which meant that mail could not connect to this URL without SMTP errors.
Therefore, I have switched cloudflare to DNS only on these 2 records to allow mail to work on SSL.
They have a web app which uses PHPMailer as well which connects to SSL via SMTP.
Is there anyway around this to use SSL on mail AND have cloudflare proxy web traffic apart from extending SSL to be wildcard SSL?