Email going into a black hole

Email going into a black hole

I set up my account yesterday, but I'm still not receiving any email. So I ran a manual test as follows:
telnet mx.zoho.com smtp
Trying 74.201.154.201...
Connected to mx.zoho.com.
Escape character is '^]'.
220 mx.zohomail.com SMTP Server ready March 21, 2015 7:39:17 PM PDT
EHLO server.frickson.us
250-mx.zohomail.com Hello server.frickson.us (173-11-38-134-Minnesota.hfc.comcastbusiness.net (173.11.38.134))
250-STARTTLS
250 SIZE 25000000
MAIL FROM: <john@frickson.us>
250 Sender <john@frickson.us> OK
RCPT TO: john@frickson.us
501 Syntax error in recipient address
RCPT TO: <john@frickson.us>
250 Recipient <john@frickson.us> OK
DATA
354 Ok Send data ending with <CRLF>.<CRLF>
Subject: Test MX Manual
From: "John" <john@frickson.us>
To: <john@frickson.us>

Testing

.
250 Message received
QUIT
221 mx.zohomail.com closing connection
Connection closed by foreign host.


So it looks like your server is receiving the email, but it never shows up in my inbox. Help!

Thanks,
John