Re: "util_rb_3tld ct.sendgrid.net" warranted?

[Axb]

On 4/22/21 4:07 AM, John Hardin wrote:

Prompted by seeing this sort of thing in SA Users List spams:

   Unsubscribe
   https://u21002357.ct.sendgrid.net/asm/unsubscribe/?mumblemumble

Should we add "util_rb_3tld ct.sendgrid.net" so that maybe URIBL could help out with catching abusive sendgrid accounts?

dirt is shared with legit users - too risky