See, e.g., 
https://www.spamhaus.org/news/article/797/the-current-state-of-domain-hijacking-and-a-specific-look-at-the-ongoing-issues-at-godaddy,
 https://www.spamresource.com/2010/10/godaddy-blacklisted-by-ahbl.html


--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3

________________________________________
From: IBM Mainframe Discussion List [[email protected]] on behalf of Tom 
Brennan [[email protected]]
Sent: Thursday, February 18, 2021 5:45 PM
To: [email protected]
Subject: Re: XMITIP and ANTI SPOOF message

On 2/18/2021 2:20 PM, Jeremy Nicoll wrote:
> It depends surely on the mail host?  If I've done an authenticated login to
> a reputable mail provider, surely they'll make sure that what they send
> out will accurately reflect who I am, not who my email client claims?

I think that's correct - it depends.  I switched ISP's 2 weeks ago (bad
Spectrum cable to great Frontier fiber service *finally* in my
neighborhood) and had to rework that relay processing a bit.  The old
ISP required specific FROM addresses.  The new outgoing email server
(Godaddy) does not seem to check or change those addresses.  It does
require a paid account with userid and password, and with that I assume
they can trace mail back to me if I decide to change careers and get
into the spam business :)

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