I have a history of not being able to get emails from them, I get the receipt of purchase when they charge me for a box and I get the tracking email. Nothing else works. Sent them a message on facebook about it, I'm sure they'll get back to me sunday. Once I get access again I'll probably change my email over to a more reliable account.
Same situation here, and I can shed light on this, as I run my own server. All of this has been sent to CV on Friday. I even told them how to fix it.
My mail server spits out this:
Aug 17 07:08:29 server postfix/smtpd[8441]: connect from mail-s69.mailgun.info[184.173.153.197]
Aug 17 07:08:29 server postfix/smtpd[8441]: NOQUEUE: reject: RCPT from mail-s69.mailgun.info[184.173.153.197]: 450 4.1.8 <bounce+ab9566.9720d-erik=otakubell.com@mg.craftvapery.com>: Sender address rejected: Domain not found; from=<bounce+ab9566.9720d-erik=otakubell.com@mg.craftvapery.com> to=<erik@otakubell.com> proto=ESMTP helo=<mail-s69.mailgun.info>
Aug 17 07:08:29 server postfix/smtpd[8441]: disconnect from mail-s69.mailgun.info[184.173.153.197]
In other words, if I am interpreting this correctly, they are attempting to send email from a non-existent location (mg.craftvapery.com), and my email server is rejecting it, and rightly so, as it is a common tactic of spammers.
They either need to make mg.craftvapery.com exist by adding an appropriate A-Record, or, better yet, they need to send the email from a legitimate location (craftvapery.com instead of mg.craftvapery.com).
Or, to put this all another way, you are ALREADY using a more reliable email account.
I just got off the phone with someone from CV - they are aware of the issue and are working on it. It'll take another day or so. For now, I am content to wait.