Sign up issue with confimation e-mail

I tried to create a openwrt account but my mail server rejected your confirmation e-mail as follows:

Sep 20 18:49:34 server1 postfix/smtpd[7349]: NOQUEUE: reject: RCPT from[]: 504 5.5.2 : Helo command rejected: need fully-qualified hostname; .......................

So, I logged in with my github account. I'd rather keep my accounts separated.

Thanks for report - I tracked down and fixed misconfiguration. If you PM me the name of the account you tried to sign up I'll see if I can reissue the confirmation mail.