[ga] Godaddy mail hostname = spam errors and possible security issue?

[Andy Gardner <andy@xxxxxxxxxxxxxxx>]

Godaddy appears to use "made up" hostnames for SMTP HELO entries...

Received:       from unknown (HELO gdmailer03.dc1.corp.gd) (208.109.14.188) by 
m1relayapp01-01.prod.mesa1.secureserver.net with SMTP

I can see a couple of problems with this.

1. Many antiSPAM measure reject mail from unknown hosts.

2. corp.gd is a legitimate domain name owned by someone else than than Godaddy.

Domain Name:               corp.gd

Registrant, Technical Contact, Billing Contact, Admin. Contact
  SRA, MII
  Private Registration, b-dul Unirii 80, Bacau, , , , ramsmith59@xxxxxxxxx
  Romania
  E-mail:                  domainmailfwd@xxxxxxxxx
  Phone:                   1.44.7833722420
  Fax:                     1.40.72729289

Resource Records (2):
                           ns      ns1.register.com        
                           ns      ns2.register.com        


One wonders how a major ICANN approved registrar can make such basic technical 
errors, and leave them in place for YEARS?