Helo command rejected, not in domain bitmask.net

I've tried to send an email from test3_131064@dev.bitmask.net to test3_win7b@bitmask.net and got this error:

: host leech.bitmask.net[198.252.153.85] said: 554
    5.7.1 : Helo command rejected: You are not in
    domain bitmask.net (in reply to RCPT TO command)

I'm attaching the original source of the email.

(from redmine: created on 2013-11-15, closed on 2013-12-19, relates #5343 (closed))